节制闸
参考答案:
枯水期用于拦截河道,抬高水位,以利上游取水或航运要求,洪水期则开闸泄洪,控制下泄流量。
句型转换。
1. Mr. Smith often flies to Tokyo for the meeting. (同义句转换)
Mr. Smith often _____ a _____ to Tokyo for the meeting.
2. His factory is 10 miles from his home. (对画线部分提问)
_____ is his factory from his home?
3. My mother usually takes the bus to work. (变否定句)
My mother _____ _____ _____ the bus to work.
4. I usually spend 3 hours doing my homework. (同义句转换)
It usually _____ me 3 hours _____ _____ my homework.
5. He goes to school by No.103 Bus. (同义句转换)
_____ the No.103 Bus to school.
异烟肼主要的不良反应是()
A.周围神经炎,四肢麻木
B.中枢抑制,嗜睡
C.骨髓抑制
D.第八对脑神经损害,耳聋