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【简答题】
一质点在xy平面上运动,运动函数 (采用国际单位制)。 (1)求质点运动的轨道方程并画出轨道曲线; (2)求 时,质点的位置、速度和加速度。
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【单选题】A: Can you answer the telephone? B: Im in the bath. According to cooperative principle, this dialogue violates the maxim of______.
A.
quantity
B.
quality
C.
relation
D.
manner
【单选题】Can you answer the questions __ the passage? [ ]
A.
according to
B.
base on
C.
because of
D.
connect with
【简答题】关于房地产投资信托基金的特征，说法不正确的是（ ）。
【单选题】—Joe, can you answer the phone for me, please? I supper. —OK, Mum. [ ]
A.
was cooking
B.
cook
C.
am cooking
D.
cooked
【简答题】请按句意及所给的汉语提示，写出空缺处单词的正确形式。 1. Can you answer the _______ (第三) question and the fourth one in Chinese ? 2. We live in a flat with two _______ (卧室). 3. There is a bank _______ (在……后面) the bus station. 4...
【简答题】阅读理解。 Ding-Dong! 'Jason, honey? Can you answer the door?' 'I am busy, mom!' Jason shouted back at his mother. He had spent three hours so far working to this point in the . He couldn't stop now. D...
【单选题】假设因果稳定的离散时间LTI系统的系统函数H(z)是有理分式，且系数都是实数，则下列说法正确的是（ ）
A.
若复数z0是H(z)的零（极）点，则 z0 的共轭 也一定是H(z)的零（极）点。
B.
若复数z0是H(z)的零（极）点，则z0的共轭 未必是H(z)的零（极）点 。
C.
若复数z0是H(z)的零（极）点，则z0的共轭 一定不是H(z)的零（极）点。
D.
H(z) 的零（极）点都是实数。
【单选题】—Can you answer the last question? —No, I _______. It's too difficult. [ ]
A.
mustn't
B.
can't
C.
needn't
D.
shouldn't
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