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【单选题】
Which of the following statements describes lysogenic phage conversion?
A.
The transformation of a virulent phage to a lysogenic phage
B.
A change in bacterial phenotype due to the presence of a prophage
C.
The conversion of a prophage to a temperate phage
D.
The incorporation of a prophage into the bacterial chromosome
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【单选题】听力原文:M: Will you please show me that notebook? W: Certainly. M: How much is it? W: Twenty-one yuan and fifty fen. M: Hm. It's certainly nice, but it's a bit more than I was thinking of paying. I don't...
A.
Ten yuan and ninety fen.
B.
Twenty yuan and ninety fen.
C.
Twenty-one yuan and fifty fen.
D.
Ten yuan and fifty fen.
【单选题】钢绞线是成盘状供应,不需要对焊接长。制作工序是:开盘→下料→编束。
A.
下料→开盘→编束
B.
编束→开盘→下料
C.
开盘→编束→下料
D.
开盘→下料→编束
【单选题】钢绞线是成盘状供应,不需要对焊接长,制作工序是( )。
A.
下料→开盘→编束
B.
编束→开盘→下料
C.
开盘→编束→下料
D.
开盘→下料→编束
【单选题】听力原文:W: Hello. May I help you? M: Could I speak to Jane Green please? W: I'm afraid she's in a staff meeting at the moment. M: Oh, I see. Do you know when she'll be available? W: The meeting should en...
A.
Within two or three days.
B.
Within 7 days.
C.
Within 30 days,
D.
Within 10 days.
【单选题】听力原文:W: Personnel Department. M: Hello. Could I speak to Mr. Smith, please? W: I'm afraid he's not at his desk now. M: Do you know when he'll be back? W: About three-thirty, I think. Can I take a mess...
A.
The Personnel Department.
B.
The Marketing Department.
C.
The Production Department.
D.
The R&D Department.
【单选题】听力原文:W: Hello. May I help you? M: Could I speak to Jane Green please? W: I'm afraid she's in a staff meeting at the moment. M: Oh, I see. Do you know when she'll be available? W: The meeting should en...
A.
She is on a business trip.
B.
She is at a meeting.
C.
She is abroad.
D.
She is in the office.
【简答题】Imagine that your friend Chen Jun has sent you an email message describing his unpleasant experience and asking what you think about it. Write him a letter suggesting some possible explanations for wh...
【单选题】听力原文:M: Could I have my bill, please? W: Certainly, sir. Here you are. M: Could you kindly explain this to me? What is item 7? W: Yes, sir. That's the service fee, 15 per cent. M. Oh, I see... I think...
A.
Checking his bill.
B.
Reading the menu.
C.
Waiting for the waitress to serve dishes.
D.
Waiting for the waitress to order dishes.
【单选题】百度检索中,如要指定网页标题关键字,可以使用:
A.
intitle:关键字
B.
inurl:关键字
C.
intitle:  关键字
D.
inurl:  关键字
【单选题】指定标题检索
A.
Filetype
B.
site
C.
intitle
D.
inurl
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