新民主主义革命在全国胜利并解决土地问题以后，我国的主要矛盾是

(1)【◆题库问题◆】：[单选]新民主主义革命在全国胜利并解决土地问题以后，我国的主要矛盾是
A．工人阶级和资产阶级的矛盾
B．地主阶级和农民阶级的矛盾
C．经济基础和上层建筑的矛盾
D．先进的生产关系和落后的生产力之间的矛盾

【◆参考答案◆】：A

(2)【◆题库问题◆】：[单选] 中枢化学感受器最敏感的直接刺激物是（　　）
A．脑脊液中的C02
B．血液中的C02
C．脑脊脑中的H+
D．血液中的H+
E．脑脊液中的P02降低

【◆参考答案◆】：C

(3)【◆题库问题◆】：[单选] I lookedand looked，and at last I made out two figures moving slowly in the _______.
A．end
B．distance
C．past
D．wild

【◆参考答案◆】：B

(4)【◆题库问题◆】：[多选] 迷走神经（　　）
A．为混合性神经
B．经肺根后方下降
C．穿过膈的主动脉裂孔入腹腔
D．副交感纤维分布于胸、腹所有内脏器官的平滑肌、心肌和腺体
E．副交感纤维分布于胸、腹内脏(降结肠以下的消化管除外)的平滑肌、心肌和腺体

【◆参考答案◆】：A,B,E

(5)【◆题库问题◆】：[单选,材料题] The reasonwhy all the solar energy falling on the earth can’t be utilized is that ______．根据以下内容，回答下面的题目。The energy which the sun radiates goes inevery direction, and only a minute part of it falls on the earth．Even so, it represents power of about 5,000,000 horsepower (马力) per square mile per day; the sun gives us as much energy everymiunte as mankind utilizes in a year．At present, we usethis energy indirectly, and it is our final source of power．Coal represents the chemical action of the sun on green plantsthousands of years ago．Water power results from therain formed by vapor which comes from the evaporation of water under thesunshinE．Even windmills operate because of air currentsset in motion by the different heating affects of the sun in different places．Some day, through chemistry or some type of solar engine, we shallharness this great source of energy more directly．Alreadya scientist has worked out an engine, surprisingly efficient, in which the sun’srays are concentrated through mirrors on a tube of water to create steam．How muchenergy given off by the sun reaches the earth?
A．only a verysmall part is available
B．the sun istoo distant from the earth
C．it takesthousands of years for this energy to be stored up in coal and oil
D．ourscientific knowledge is not sufficient

【◆参考答案◆】：D

(6)【◆题库问题◆】：[单选,材料题] 回答下面的题目Eggs are my favorite fooD．I likethem 21 ，hard-boiled，scrambled，or poacheD．I eat eggsfor22 ，lunch，and dinner．I eat eggshere，there，and everywhere!Eggs taste great．You can eat them by 23 or as part of any meal．Eggsare 24 used as an ingredient in many prepared foods．Can youthink of any foods that contain25 ?Eggs are really a perfect fooD．They are26 in most of the nutrients we need to maintain good 27 ．When a baby chicken develops 28 an egg，the egg29 and yolk are the only foods they neeD．Many people believe that eggs are 30．They pointout that eggs contain a very high amount of cholesterol(胆固醇)．Too31 of one kind of cholesterol in our blood can cause heart diseasE．There is no evidence that eggs 32 the harmful cholesterol in our blooD．When we eat foodsthat are33in cholesterol，our bodies make 34of it to balance，or adjust．If you want to enjoy a tasty and healthy fooD．eat plentyof35
A．high
B．low
C．down
D．flavored

【◆参考答案◆】：A

【◆答案解析◆】：后面的balance和adjust告诉我们，即便我们食用了胆固醇高的食物，我们的身体会自我调整，选项A是正确的。

(7)【◆题库问题◆】：[单选] 右心室有（　　）
A．梳状肌
B．动脉圆锥
C．二尖瓣
D．卵圆窝
E．主动脉前庭

【◆参考答案◆】：B

(8)【◆题库问题◆】：[单选] 肺泡回缩力主要来自（　　）
A．肺弹性纤维与肺泡表面张力
B．肺泡表面液体分子层
C．肺泡表面活性物质与肺弹性纤维
D．肺弹性纤维
E．肺泡表面活性物质

【◆参考答案◆】：B

(9)【◆题库问题◆】：[单选] 不是朱光潜的主要著作的是（　　）
A．《悲剧心理学》
B．《文艺心理学》
C．《诗论》
D．《文艺对话录》

【◆参考答案◆】：D

(10)【◆题库问题◆】：[单选] 下列哪项无助于预防急性肾功能衰竭发生（　　）
A．对创伤患者应及时进行清创
B．对失血患者应及时补充血容量
C．合理使用能量合剂
D．避免使用对肾有损害的药物
E．要控制输液速度

【◆参考答案◆】：E