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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
C.
taken charge of
D.
taking the charge of
【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
【简答题】Almost all races of people have the same ______ to become tall.
【判断题】Famous people have the same problems as ordinary people.
A.
正确
B.
错误
【单选题】关于深部脓肿,下列哪项是错误的()
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
【判断题】Both the American people and Chinese people have the same attitude towards Sun Wukong.
A.
正确
B.
错误
【单选题】People have the same opinion about the impact of globalization on the Arabic culture.
A.
True
B.
False
【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
【单选题】Our manager a report in the office now.
A.
write
B.
writes
C.
is writing
【判断题】Americans and the British people have the same culture.
A.
正确
B.
错误
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