单项选择题

What are the most damaging emissions()

A. Ultrafine particles.
B. Gases.
C. Particles produced by gasoline engines.

<上一题 目录 下一题>
热门 试题

单项选择题
What will the woman do next()

A. Visit the pet motel.
B. Write a review.
C. Look for some information.
单项选择题
What’s the night doctor’s mobile number()

A.0506 759 3856.
B. 0506 759 3857.
C. 0506 758 3856.
相关试题