身上有黑白斑纹,主要传播流行性乙型脑炎和登革热的蚊子叫()。
A.伊蚊
B.库蚊
C.虐蚊
参考答案:A
—What are you busy with?
—An exam. It's _____. If I pass it, I can get a job as a guide.[ ]
A. crucial
B. easy
C. anxious
D. worried
凡影响行车的施工、维修作业,不得利用列车间隔进行(特别规定的慢行施工除外,都必须纳入天窗。