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【单选题】
若平面向量 b 与向量 a =(-1,2) 的夹角为180°,且 b =3 5 ,则 b =( )
A.
(-3,6)
B.
(3,-6)
C.
(6,-3)
D.
(-6,3)
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参考答案:
举一反三
【单选题】While our manager is away on business, Our company will be ______ Mr. Zhang.
A.
in the charge of
B.
in charge of
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taken charge of
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【单选题】You ______ our manager in the office this morning, because he has gone to Shanghai on business.
A.
shouldn't see
B.
couldn't have seen
C.
can't see
D.
mustn't have seen
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【判断题】Famous people have the same problems as ordinary people.
A.
正确
B.
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A.
局部有疼痛与压痛
B.
有明显全身症状
C.
穿刺有脓
D.
可扪及波动感
E.
有凹陷性水肿
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【判断题】Both the American people and Chinese people have the same attitude towards Sun Wukong.
A.
正确
B.
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【单选题】People have the same opinion about the impact of globalization on the Arabic culture.
A.
True
B.
False
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【单选题】关于乳腺脓肿的治疗原则,下列哪项是错误的
A.
切开引流时取放射状切口
B.
乳晕下脓肿应沿乳晕边缘作弧形切口
C.
切开引流时,应避免切开脓肿隔膜
D.
乳房后脓肿应沿乳房下缘作弧形切口
E.
乳房深部脓肿需先穿刺后切开
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【单选题】Our manager a report in the office now.
A.
write
B.
writes
C.
is writing
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【判断题】Americans and the British people have the same culture.
A.
正确
B.
错误
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【单选题】While our manager is away on business, Our company will be ______ Mr. Zhang.
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【单选题】You ______ our manager in the office this morning, because he has gone to Shanghai on business.
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【单选题】关于深部脓肿,下列哪项是错误的()
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【单选题】关于乳腺脓肿的治疗原则,下列哪项是错误的
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【单选题】Our manager a report in the office now.
A.
write
B.
writes
C.
is writing
查看完整题目与答案
【判断题】Americans and the British people have the same culture.
A.
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B.
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查看完整题目与答案
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