当心脏处于全心舒张期时（　　）

(1)【◆题库问题◆】：[单选] 当心脏处于全心舒张期时（　　）
A．心室达到最大充盈
B．房室瓣关闭
C．心室容积不变
D．动脉瓣关闭
E．心室内压略高于心房内压

【◆参考答案◆】：D

(2)【◆题库问题◆】：[单选] Jack came to theparty_______．
A．withoutbeing invited
B．without inviting
C．withoutinvited
D．without a invitation

【◆参考答案◆】：A

(3)【◆题库问题◆】：[单选,材料题] __________根据以下内容，回答下面的题目。The death of a child, _51_ one’s own child,is something the mind can hardly comprehenD．It seems togo _52_ naturE．The end of a life that is still forming_53_ has just begun is an almost unthinkable cruelty．But it happens．Parents sometimes must witness the illness and death of the children_54_ whom they gave birth．And _55_ will ever fill theempty place that the dead child leaves behinD．Parents_56_ to die before their children, which is the natural order of life events．When the situation is reversed and a child dies _57_ the parents itseems wrong．Yet we never know why one person dies andanother lives．But we do know _58_ a child is gone, theparents still have a future, as grey and worthless as it may at first seem．Death may take the child, but the love never _59_．The sorrow after a child’s death is one ofthe longest and hardest type of _60_ to live with．And ittakes long to deal with the parents’ own emotions．__________
A．and
B．or
C．but
D．so

【◆参考答案◆】：B

(4)【◆题库问题◆】：[单选] 颈静脉切迹位于（　　）
A．颅底骨
B．胸骨
C．锁骨
D．颈椎
E．以上都不对

【◆参考答案◆】：B

【◆答案解析◆】：略

(5)【◆题库问题◆】：[单选] 下列函数中，在x=0处不可导的是（　　）
A．
B．
C．
D．

【◆参考答案◆】：D

(6)【◆题库问题◆】：[单选] His hands _______ alittle as he took up a pen and began to writE．
A．waved
B．shook
C．raised
D．1ifted

【◆参考答案◆】：B

(7)【◆题库问题◆】：[单选] 同一骨骼肌细胞在接受其运动神经元的冲动刺激后产生的2次终板电位中，第2个终板电位的振幅发生了变化，幅度明显降低，这可能是因为（　　）
A．切断了运动神经元
B．在浸泡液中加了肾上腺素
C．在浸泡液中加了去甲肾上腺素
D．在浸泡液中加了箭毒
E．在浸泡液中加了钠离子

【◆参考答案◆】：E

【◆答案解析◆】：略

(8)【◆题库问题◆】：[单选,材料题] __________根据以下内容，回答下面的题目。The death of a child, _51_ one’s own child,is something the mind can hardly comprehenD．It seems togo _52_ naturE．The end of a life that is still forming_53_ has just begun is an almost unthinkable cruelty．But it happens．Parents sometimes must witness the illness and death of the children_54_ whom they gave birth．And _55_ will ever fill theempty place that the dead child leaves behinD．Parents_56_ to die before their children, which is the natural order of life events．When the situation is reversed and a child dies _57_ the parents itseems wrong．Yet we never know why one person dies andanother lives．But we do know _58_ a child is gone, theparents still have a future, as grey and worthless as it may at first seem．Death may take the child, but the love never _59_．The sorrow after a child’s death is one ofthe longest and hardest type of _60_ to live with．And ittakes long to deal with the parents’ own emotions．__________
A．with
B．against
C．beyond
D．above

【◆参考答案◆】：B

(9)【◆题库问题◆】：[单选,材料题] Who are the first to make the successof sit-in become true?回答下面的题目American Blacks experienced a revolutionafter 1945, a revolution in expectations．Following World War Ⅱ , the steady movement toward first-classcitizenship for Black people quickened, with significantactions taking place in courts of law, in voting booths, in restaurants and inthe streets of the nation．A decade of intense civil rights activity was launched in 1954 when theUnited States Supreme Court declared segregated schools to beunconstitutional． In 1955, Dr． Martin Luther King, Jr． , effectivelyorganized the Blacks of Atlanta, Georgia, in a bus boycott． The boycott lastedtwo years, and when it was over, Blacks no longer were degraded by being forcedto sit or stand in the rear of buses．In 1960, a group of Black college students decided that they, as well aswhite persons, had the right to eat at a lunch counter in Greensboro, NorthCarolinA． This sit-in sparked anaggressive national movement and, in the next few years, thousands of young menand women--Black and White, North and South--overturned local laws and customsthat had maintained segregation． Sit-ins, pray-ins, freedom rides, freedommarches and demonstrations to open all schools to Black children took placeacross the nation．Several important actions took place tochange the status of black people
A．Black college students and whites．
B．First-class citizens．
C．The Blacks of AtlantA．
D．Young men and women in Greensboro．

【◆参考答案◆】：A

【◆答案解析◆】：第三段。一群黑人大学生和白人大学生认为黑人与白人一样有权利在餐厅内吃饭。选项A是正确的。

(10)【◆题库问题◆】：[单选] More has been learned since 1945 aboutthe chemical changes in the body than in all human history before ________timE．
A．in
B．that
C．which
D．the

【◆参考答案◆】：B

【◆答案解析◆】：这里指的是在1945年之前的那个时期，并有强调之意。选项B是正确的。【句子大意】自从1945年以来，我们对人体化学变化的了解比1945年之前的整个人类历史所了解的还要多。