问题
单项选择题
人在寒冷的环境中，主要通过（）方式增加产热。
A.心跳加快
B.肝脏代谢活动加强肾上腺素
C.寒战
D.分泌增加
答案
参考答案：C
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人在寒冷的环境中，主要通过（）方式增加产热。
A.心跳加快
B.肝脏代谢活动加强肾上腺素
C.寒战
D.分泌增加
参考答案：C
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B: No, it isn't. It's on the bookcase. A: Oh, OK. How about my books? (2)_____________ B: No, they aren't. They are on the chair. A: Oh. So, where's my pencil case? B: (3)_____________ A: And (4)___________ B: It's under the table. And your baseball is under the chair. A: Oh, OK. (5)____________ B: The keys? They're on the table. A: Thank you very much. |