河西走廊地区的气候类型是（ ）
⑴Are you cold? ____
⑵Would you like some fruit? ____
⑶Do you like dumplings? ____
⑷What's your favourite food? ____
⑸What's on the table? ____
A. Dumplings.
B. Yes, I am.
C. My favourite food is meat.
D. Yes, please.
E. Yes, I do.
下列各组词语中，划线字的注音有误的一项是（ ）
在基因工程操作中所需的两种酶是①限制酶 ②DNA 连接酶 ③解旋酶 ④DNA 聚合酶
