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【判断题】
植物的种子类经过加热处理,能终止种子发芽,防止变质而利于保存。A.
正确
B.
错误
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举一反三
【单选题】Station will keep your checked luggage for free for__days .
A.
three days
B.
four days
C.
five days
D.
six days
【简答题】对话配对 ( )1. What's your name? ( )2. What's your father's job? ( )3. Where are you from? ( )4. How old are you? ( )5. Can you ride a horse? ( )6. Is Tom American? ( )7. Can h...
【简答题】句子配对。 ( )1. What's your name? ( )2. What's her phone number? ( )3. Nice to meet you. ( )4. What's his last name? A. Nice to meet you. B. It's Brown. C. I'm Bob Smith. D. It's 85760129.
【单选题】For most of the budget airlines, the free allowance for luggage is___________ ?
A.
20 k g
B.
1 5 k g
C.
1 0 k g
D.
5 k g
【简答题】free luggage allowance
【单选题】— May I put my luggage on the seat beside you, sir, if it is free? — ____. [ ]
A.
Sure, with pleasure
B.
Okay, please yourself
C.
Well, never mind
D.
Yes, help yourself
【简答题】图2-65所示的多量程电流表，所用表头参数Ig＝250gμA，rg＝3kQ，各挡量限为Im1＝1mA，Im2＝10mA，则R1＝________，R2＝________。1mA挡下的仪表内阻为_______，10mA挡下的仪表内阻为________。
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