关于长骨的描述，正确的是（） A.具有"一体两端"的骨 B.骨干内

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问题单项选择题

关于长骨的描述，正确的是（）

A.具有"一体两端"的骨

B.骨干内具有含气的腔

C.骨表面均被覆骨膜

D.骺软骨于成年以后形成骺线

E.只有髓腔内面被覆骨膜

答案

参考答案：D

阅读理解

读对话，判断对(√)错 (×)。

Mike: Hi! What would you like for lunch?

Jack: I'd like some rice and beef.

Mike: Would you like some dessert?

Jack: What is dessert?

Mike: It's something sweet, like pudding, fruit or ice-cream. . .

Jack: I'd like an ice-cream.

( ) 1. Jack would like some rice and meat.

( ) 2. Jack knows what dessert is.

( ) 3. Dessert is something salty.

( ) 4. Pudding is dessert.

( ) 5. Jack would like some fruit.

选择题

下列说法正确的是（　　）

A．线段有且只有一条对称轴

B．垂直于线段的直线就是线段的对称轴

C．角的对称轴是角的平分线

D．角平分线所在的直线是角的对称轴