题目内容
（请给出正确答案）
A．Because
B．For
C．Since
D．While
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更多“________ much is known about w…”相关的问题
听力原文：W; Have you saved enough to buy that new printer for your computer yet？
M: You know, money seems to be bunting a hole in my pocket recently. Let's just wait and see, Maybe next month.
Q: What does the man mean？
(13)
A．He's not sure how much a printer costs.
B．He'll buy a computer later this week.
C．He lost money he was saving.
D．He doesn't have enough money to buy a printer now.
A.7%KNO3，40%NaNO2，53%NaNO2
B.7%NaNO2，40%NaNO3，53%KNO3
C.7%NaNO3，40%KNO3，53%NaNO2
D.7%NaNO3，40%NaNO2，53%KNO3
听力原文：Do you know Professor Liu's telephone number？
(5)
A．Yes, with pleasure.
B．Yes, I know her very well.
C．No, I'm afraid I don't.
D．No, I won't be free this evening.
______his address, I can't send this book to him.
A．Not knowing
B．Knowing
C．Not know
D．N6t known
Not untillast______week the sad news．
A．that I knew
B．did I know
C．did I knew
D．that did I know
听力原文：Can you help me answer this question？
(8)
A．No problem.
B．Thanks a lot.
C．I don't know.
Why must they meet at 7:00？
A．Because they're going to plant trees.
B．Because they don't know the way.
C．Because they have to walk there.
A．Because the British didn't have the right to do so.
B．Because the soldiers didn't know farming.
C．Because the soldiers didn't like to go to Kenya.
D．Because the land in Kenya is unfit for farming.
Do scientists know how many cryptic species exist？
A．Not yet.
B．Yes, they do.
C．They will know the answer in another one or two years.
D．They will never know the answer.
