地衣是细菌和藻类共生的复合体。( )

【名词&注释】

生物碱(alkaloid)、复合体(complex)、中国古代(ancient china)、复分解反应(double decomposition reaction)、可卡因(cocaine)、判断题、未成熟(immature)、化合反应(combination reaction)

[单选题]地衣是细菌和藻类共生的复合体。( )

A. 正确
B. 错误

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举一反三：

[单选题]We can infer from the passage that the author ______________.

A. enjoyed grown-up tricks very much
B. 1oved poster competitions very much
C. felt surprised to win the competition
D. became wise and rich after the competition

[单选题]下列类型的反应，一定发生电子转移的是

A. 化合反应^{(combination reaction)}
B. 分解反应
C. 置换反应
D. 复分解反应

[单选题]From Paragorph 2, we know that the author was .

A. good a pretending
B. rude to the stockbroker
C. ready to help her mother
D. unwilling to phone for her mother

[单选题]罂粟的( )含吗啡、可卡因等30多种生物碱。

A. 花
B. 未成熟^(immature)果实
C. 幼叶
D. 幼茎

[单选题]中国古代，朝廷有时将不在户口册内且因此不纳税的人称为“盗贼”。这反映当时朝廷

A. 要求民众纳税 只要求部分民众纳税我 不要求民众纳税 只要求部分“盗贼”纳税

[单选题]What was Mrs. Franks doing when the accident tool place?

A. walking alone Churchill Avenue
B. Getting ready to cross the road
C. standing outside a bank

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