During the Middle Ages, productivity of labor ______.
A. was a primary concern of society
B. was hampered by class relationships
C. began to improve over levels reached by the Greeks
D. was in a period of technical progress
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In the author's opinion, the idea that geneticists could produce a super-ape is ______.
A. irrational
B. plausible
C. biologically impossible
D. demonstrably true
在MT 701 Issue of a Documentary Credit中，代号27代表的是信用证的（ ）。
A. Description of Goods and/or Services
B. Sequence of Total
C. Additional Conditions
Date of Amendment
Education in Russia and the other new countries faces especially daunting obstacles because the struggling economies of these nations often provide insufficient funds for education.
A. stunning
B. discouraging
C. concerning
D. prevailing
A型题 相对生物利用度等于（）
A. （试药AUC/标准药AUC）×100%
B. （标准药AUC/试药AUC）×100%
C. （口服等量药后AUC/静脉注射等量药后AUC）×100%
D. （静脉注射等量药后AUC/口服等量药后AUC）×100%
E. 绝对生物利用度
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