皮皮学，免费搜题
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【简答题】
Read and order. 给下列句子排序。 1. I'll take four, please. 3. What would you like? 5. I'd like erasers. 7. Yes, this is 2 yuan. 9. You're welcome. 2. How much is this? 4. Four yuan. 6. That's expensive. Are the erasers on sale? 8. Thanks. 10. Here you are. 正确的顺序：
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举一反三
【单选题】Engines may only require starting valves to be fitted to one bank of cylinders
A.
Single-cylinder Vee type
B.
ln-line
C.
Multi-cylinder Vee type
D.
Any of the above
【单选题】Emails are _____ and _____ than the Post Office.
A.
Emails are slower and more expensive than the Post Office.
B.
Emails are less expensive and considerably quicker than the Post Office.
C.
Emails are great and more fun than the Post Office.
【简答题】优先编码器,允许几个信号同时输入,但只对( )信号编码。
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