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举一反三
【单选题】问卷设计中常见错误是（）。
A.
双重装填(指一个问题包括了两个或两个以上的问题)
B.
使用了一些专业术语
C.
直接询问敏感性问题
D.
诱导性提问和抽象的提问
E.
以上都是
【单选题】In Paragraph 2, the author cites the example of the leading actor on the stage to show that ___.
A.
the growth of exceptional children has much to do with their family and the society
B.
exceptional children are more influenced by their families than normal children are
C.
exceptional children are the key interest of the family and society
D.
the needs of the society weigh much heavier than the needs of the exceptional children
【单选题】甲在某公共浴室洗澡，将皮鞋置于浴室外面。擦皮鞋的乙见甲的皮鞋很脏便将其擦亮。甲洗浴完后被乙索要2元的擦鞋费。则（）。
A.
基于无因管理，甲应当支付2元钱
B.
基于不当得利，甲应当支付2元钱
C.
基于事实合同关系，甲应当支付2元钱
D.
甲无须支付2元钱
【单选题】The author cited the case of the pollen-sprayed milkweed leaves in Paragraph 3 to show______.
A.
GM foods may harm crops
B.
GM foods contain more protein
C.
GM foods can kill insects effectively
D.
GM foods also have a dark side