【单选题】I don't usually like staying at ______ hotels, but last summer we spent a few days at ______ very nice hotel by the sea.
【单选题】——Would you like to wait here for ? ——No, I have been here that long .
【单选题】Last summer we visited the West Lake, _____Hangzhou is famous in the world.
【简答题】将动词变成-ing形式。 1. play ___________ 3. wait ___________ 5. tell ___________ 7. sing ___________ 9. open ___________ 2. run ___________ 4. write ___________ 6. make ___________ 8. put _...
【单选题】关于降压型零电压开关准谐振电路开关管耐压,表述正确的是下面哪一个?
A.
降压型零电压开关准谐振电路,谐振电压峰值低于输入电压的 2 倍。
B.
降压型零电压开关准谐振电路,谐振电压峰值与输入电压相等。
C.
降压型零电压开关准谐振电路,谐振电压峰值低于输入电压的 1/2 。
D.
降压型零电压开关准谐振电路,谐振电压峰值高于输入电压的 2 倍,增加了对开关器件耐压的要求。
【单选题】Last summer we sent on a trip to Beijing. Among ______ places we visited were the Great Wall and the Summer Palace.
【单选题】Last summer we went on a trip to Beijing. Among ____ places we visited were the Great Wall and the Summer Palace.
【单选题】降压型零电压开关准谐振电路开关管耐压,表述正确的是:
A.
降压型零电压开关准谐振电路,谐振电压峰值高于输入电压的2倍,增加了对开关器件耐压的要求。
B.
降压型零电压开关准谐振电路,谐振电压峰值与输入电压相等。
C.
降压型零电压开关准谐振电路,谐振电压峰值低于输入电压的1/2。
【简答题】英汉互译。 1. 在……前面 ________ 2. 散步 ________ 3. 谈论 ________ 4. have a good time ________ 5. wait for ________