1在直角坐標(biāo)系中，直線
的傾斜角是
A．
B．
C．
D．
2.直線l經(jīng)過A(2，1)、B(1，m2)(m∈R)兩點，那么直線l的傾斜角的取值范圍是
A．
B．
C．
D．
11. As soon as we went ________, our ship left port.
A. above board B.across the board C.on board D.by the board.
10.He is always the first ___________and the last ____________
A.to come ;to leave ing ;to leave ing ,leaving e; leave
9. Though it was the first time __________there, I got used to the climate very well.
A. that I have been there B.which I had been C.I had been D.I have been
8.________his proposal, there are pros and cons.
A. Concerning cerned cern D.to concern
7. At the party there was food ___________.
A. in abundance B .with abundance C. of abundance D. at abundance
6. My opinion is parallel ________yours.
A. with B .to C. for D .of
5. He was ___________in business.
A. success B. succeed C. a success D. succeeded
4. In the past, ice ______________food.
A. used to keep B. used to be used for keeping
C. was used to keeping D. used to be used to keeping
3. Who will succeed _____________his property after his death?
A.in B.at C.to D.from
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