多项选择题

2、根据沟谷的发育阶段和形态特征，可将黄土沟谷地貌分为（）。
A、浅沟
B、冲沟
C、切沟
D、坳沟

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单项选择题

肥胖的老年患者可以通过“饥饿”来降低血糖。（）

A．对
B．错

多项选择题

句子“尽管他生活在一个富裕的家庭，但我认为他并不快乐。”可以译为？（）。 A. Even though he lives in a wealthy family, I don't think he is happy. B. Although he lives in a wealthy family, but I don't think he is happy. C. He lives in a wealthy family, but I don't think he is happy.