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(available; urged; destination; every now and then; hands out; reunion; or something; right away; estimate; going ahead; absolutely; mostly)Scientists ____that smoking reduces life expectancy by around 12 years on average.

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(available; urged; destination; every now and then; hands out; reunion; or something; right away; estimate; going ahead; absolutely; mostly)Although it is unlikely that everyone will be able to come, they are still ____with the plan to hold a class reunion.

思想道德建设为法律建设提供( )。

A. 思想指引
B. 精神基础
C. 价值基础
D. 制度支撑

可局部用于治疗皮肤、口腔及阴道念珠菌感染的药物是 ( )

A. 氯霉素
B. 多黏菌素
C. 四环素
D. 制霉菌素
E. 克林霉素

30s亚基结合,阻止氨基酰tRNA进入A位的抗菌药是 ( )

A. 四环素
B. 链霉素
C. 庆大霉素
D. 氯霉素
E. 青霉素