按油罐的（）分类，油罐可分为地面罐、地下罐、半地下罐和高架罐4种。
A、使用材质
B、外观形状
C、储存容量
D、建造特点
参考答案：D
有关雄激素的叙述不正确的是（）
A.维持精子发生
B.维持第二性征
C.促进骨髓造血
D.促进分解代谢
E.增加皮脂腺分泌
补全对话。
A: Good afternoon. 1_____ I help you?
B: Yes, 2_____. I want a sweater.
A: 3_____ 4_____ do you want?
B: Yellow.
A: Here 5_____ 6_____. Is that all?
B: No. Do you have pants?
A: Yes.
B: 7_____ 8_____ are these things?
A: Let me see. Twenty dollars, please.
B: I'll 9_____ them. Thank you.
A: You're 10_____.
