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【单选题】
H1N1病毒、蓝藻、灵芝、蝴蝶兰、人都属于生物，下列哪作为他们的共同特征 ①具有细胞结构 ②含有核酸和蛋白质 ③能独立完成新陈代谢 ④具有⑤适应一定环境 ⑥能繁殖后代 ⑦改选环境A.
①②③④⑤⑥
B.
②③④⑤⑥⑦
C.
②③④⑤⑥
D.
②④⑤⑥
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举一反三
【单选题】There are many ways to express our feelings of loneliness, such as writing diaries, writing imaginary letter, drawing a picture and so on.
A.
Y
B.
N
C.
NG
【单选题】三相感应电动机等效电路中的附加电阻 (1-s) R'2/s上所消耗的电功率应等于( )。
A.
输出功率P2
B.
输入功率P1
C.
电磁功率Pem
D.
总机械功率PΩ
【单选题】The author implies that in the development of man, ______.
A.
speech, agriculture and writing are the most important factors
B.
the origin of the language can not be traced
C.
both oral language and written language come out of the picture language
D.
the ape might be taught to master speech
【简答题】A．Reading in the afternoon. B．Reading in the morning. C．Reading in the evening. D．Doing morning reading right after getting up.
【单选题】The Grammar-Translation Method neglects______.
A.
listening and reading
B.
speaking and writing
C.
reading and writing
D.
listening and speaking
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