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【单选题】
关于各类血管功能特点的叙述，正确的说法是( )。A.
毛细血管前括约肌属于毛细血管前阻力部分，交感缩血管纤维的分布极少
B.
主动脉和大动脉有弹性贮器的作用，使血液能在血管系统内匀速流动
C.
微静脉口径不变时，微动脉舒张有利于组织液进入血液
D.
静脉的舒缩活动是促使静脉血回流入心脏的主要动力
E.
毛细血管分支多，总的横截面积大，容纳了循环血量的60％以上
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【简答题】一般地，大多数国家的关税结构是：对工业制成品的进口征收较高的关税，对半制成品的进口税率( )，对原料的进口税率一般，甚至免税。 A最高 B较高 C较低 D次之
【单选题】After carefully examining the dress materials supplied to our order of 15th April, we must be surprised and be disappointed ______ their quality.
A.
in
B.
to
C.
at
D.
for
【简答题】We must study the phenomenon that some of our top college students prove to be uncompetitive when they ______ with society.
【简答题】We must determine what the energy required for this purpose is.
【单选题】一般地,大多数国家的关税结构是:对工业制成品的进口征收较高的关税,对半制成品的进口税率( ),对原料的进口税率一般,甚至免税。
A.
最高
B.
较高
C.
较低
D.
次之
【单选题】In order to determine if a hypothesis is valid we must utilize
A.
qualitative analysis.
B.
empirical analysis.
C.
marginal analysis.
D.
average analysis.
【简答题】We must now depend largely on word order and function words to convey the meanings that the older language did by means of changes in the forms of words. (Passage 2)
【单选题】9一般地,大多数国家的关税结构是:对工业制成品的进口征收较高的关税,对半制成品的进口征收的税率( ),对原料的进口甚至免税。
A.
最高
B.
较高
C.
较低
D.
最低
【单选题】—____ the workers are very tired, _____they keep on working. — They are great. We must learn from them.
A.
Because; /
B.
Though; /
C.
Because; so
D.
Though; but
【单选题】We must measure and ________ to determine how much paint will be needed.
A.
calculate
B.
write
C.
read
D.
input
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