单项选择题

操纵基因又称操纵子，如同启动基因又称启动子一样。 A. 对 B. 错

你可能感兴趣的试题

单项选择题

女职工生育享受98天产假，其中产前可以休假15天。

A.正确
B.错误

Directions: Different listening strategies which are associated with either top-down or bottom-up processing. Decide which strategies they use: top-down or bottom-up.
Listening to a series of short conversations in order to understand where the
conversation is taking place.

答案： Top-down