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【单选题】
单相半波整流电路中流过二极管的平均电流是输出电流平均值的（ ）倍。A.
.5
B.
1
C.
2
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【简答题】Kate: __________ ! This coffee is hot.Dave: Careful. Don't burn your tongue.2. Laura: Wow. __________ a lovely gift!Emi: I'm glad you like it.3. Luis: Oh, __________ ! I can't find my keys!Jiao: Are t...
【简答题】用所给词的正确形式填空。 1. —Do you like bananas? —No, I don't like _________ (it) at all. 2. Peter likes _________ (play) basketball. 3. His mother _________ (not) like French fries. 4. I like strawberry ice cre...
【多选题】下列各种操作正确的是()
A.
使用机床及其它机械设备时,必须在指导老师的指导下进行
B.
两人同时操作一台机械设备时,明确主、副手,并予密切配合
C.
机床开动后,不准触运动着的工件、刀具和传动部分。
D.
发现设备异常情况应停车后重新启动设备,看是否可以继续使用
【简答题】从右边选出下列句子相对应的答语 ( )1. Does her father like oranges? ( )2. Does your sister like ice cream? ( )3. What do you like to have for lunch? ( )4. Do you like Chinese? ( )5. Do they like a...
【单选题】-Let's ________ ice-cream. -I don't like __________.
A.
have; it
B.
to have; it
C.
to eat; it
D.
eat; they
【简答题】Robert is a lazy student. He misses a lot of classes. Would you like to go to a movie? Would you rather go ice skating? People should exercise regularly. They will get out of shape. Say something cons...
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