29．There are also instructions about the________of all the buttons and switches．
| A．purpose | B．function | C．power | D．Effect |
相关试题
. The United States of America ________ 50 states.
| A．makes up | B．refers to | C．consists of | D．gets close to |
The poet and _________ artist is going to give us a talk this afternoon.
| A．a | B．an | C．the | D．\ |
The old temple _______ roof was damaged in storm is now under repair.
| A．where | B．which | C．of which | D．whose |
Listen! Do you hear someone __________for help?
| A．calling | B．having called | C．to call | D．called |
Eating too much fat can ________ heart disease and cause high 相关知识点
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