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【多选题】
下面电源属于应急电源的有( )。A.
变电所母线引出供电回路
B.
应急发电机
C.
EPS应急电源
D.
UPS不间断电源
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反馈参考答案：
举一反三
【单选题】听力原文：W: You'll never believe what happened to me today. I got my phone bill for this month, and it's over $100! The worst part is, I didn't make all of the calls. There's a bunch of extra long distanc...
A.
She was overcharged.
B.
She did not send payment.
C.
She did not receive the bill.
D.
She paid the wrong amount.
【简答题】按并购是否取得目标企业的同意与合作分，并购包括：（）、（）。
【单选题】关于有效保护率,下列说法正确的是( )。
A.
总等于名义从价关税率
B.
如果进口投入品的名义关税低于制成品的名义关税,则有效保护率低于名义保护率
C.
如果进口投入品的名义关税低于制成品的名义关税,则有效保护率高于名义保护率
D.
如果进口投入品的名义关税为零,则有效保护率与名义保护率相等
【单选题】What is suggested about Ms. Thackeray?
A.
She is going to file a complaint against One Star Telecom.
B.
She has had negative experiences with other phone companies.
C.
She expected to pay the same rate for phone service each month.
D.
She does not feel it is fair to charge for phone calls by the minute.
【简答题】有效保护率(effective rate of protection)
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