在如图中的〇里填上适当的电表符号,电键闭合时电路能正常工作.
根据所给单词,在空格填入正确的单词形式。
1. Let's _______(begin).
2. Pay attention to _______(listen) to her.
3. Mike _______(go) to school.
4. He can ______(play) soccer.
5. He is a Japanese _______(play).
6. Her _______(foot) are very big.
7. My _______ (friend) parents are doctors.
8. I think ______(it) name's Mimi.
9. _______ she ______ (have) a long nose?
10. _______(be) your brother a student?
11. They are _______. They come from _______.(China)
12. Let's go (shop) tomorrow.
13. This blouse is _______(I).
14. Please help the police (find) her.
叉车工作装置起升机构液压油路中,起升油缸进油口装置限速阀,其功用是限制()的速度,以保证安全。
A、货叉起升
B、货叉下降
C、货叉前倾
D、货叉后倾