According to the passage, early-twentieth-century education reformers believed that ______.
A. different groups needed different kinds of education
B. special programs Should be set up in frontier communities to modernize them
C. corporations and other organizations damaged educational progress
D. more women should be involved in education and industry
查看答案
この じしょは たいへん （ ）です。
A. いい
B. みじかい
C. さむい
D. ひくい
The phrase "coincided with" in the first sentence of Para. 2 is closest in meaning to ______.
A. was influenced by
B. happened at the same time as
C. began to grow rapidly
D. ensured the success of
对繁殖期细菌有明显杀灭作用的药物是
A. 磺胺类
B. 头孢菌素类
C. 氨基苷类
D. 氯霉素类
E. 四环素类
细菌产生青霉素耐药的主要机制是
A. 细菌产生了水解酶
B. 细菌的代谢途径改变
C. 细菌产生了大量PABA(对氨苯甲酸)
D. 细菌产生了钝化酶
E. 细菌细胞内膜对药物通透性改变
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