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根据课程,完成女妖战机推进器部分模型制作
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【单选题】Thanks to his pension, Li Zhentian, _____ give each of his grandchildren RMB 5 as a Chinese New year gift for the first time.
A.
had to
B.
was able to
C.
would
D.
could
【单选题】He had been a strict father but was _____________to his grandchildren.
A.
indulge
B.
indulgent
【单选题】His three grandchildren( )him greatest pleasure in his old age .
A.
affords
B.
afforded
C.
has afforded
D.
have afforded
【单选题】中心在原点,实轴在 x 轴上,一个焦点在直线 3 x - 4 y + 12 = 0 上的等轴双曲线方程是 ( )
A.
x 2 － y 2 ＝ 8
B.
x 2 － y 2 ＝4
C.
y 2 － x 2 ＝ 8
D.
y 2 － x 2 ＝ 4
【简答题】In his 1930 essay “Economic Possibilities for Our Grandchildren ”, John Keynes, a famous economist, wrote that human needs fall into two classes: absolute needs ,which are independent of what others h...
【单选题】The grandfather was _____ to see his grandchildren playing _____ . [ ]
A.
happy; happy
B.
happy; happily
C.
happily; happily
D.
happily; happy
【单选题】均匀量化PCM中，取样速率为8000Hz，输入单频正弦信号时，若编码后比特速率由16kb/s增加到kb/s，则量化信噪比增加
A.
48dB
B.
36dB
C.
32dB
D.
24dB
【单选题】His grandchildren, he says, are bright and handsome, but in school their eyes .
A.
stare at
B.
over
C.
look over
D.
glaze over
【简答题】阅读理解。 In his 1930 essay 'Economic Possibilities for Our Grandchildren ', John Keynes, a famous economist, wrote that human needs fall into two classes: absolute needs ,which are independent of what ot...
【单选题】中央经济工作会议于2010年12月10日至12日在北京举行。中央、国务院总理作重要讲话。 会议针对目前严峻的通胀形势，如何保障和改善民生将是重中之重，基调为“保增长、调结构、控通胀”。这体现我国宏观调控的主要目标有（） ①促进经济增长 ②增加就业 ③稳定物价 ④保持国际收支平衡
A.
①②
B.
③④
C.
①③
D.
①④
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