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问题 多项选择题

造成树木冻害的内因有______。

A．树种与品种不同

B．枝条木质化程度

C．是否处于休眠期

D．植株有否经受过抗寒锻炼

E．离开水源的远近

F．地势坡向的不同

答案

参考答案：A,B,C,D

单项选择题 A1/A2型题

暂时性错发生机制是（）

A.恒切牙萌出初期，出现轻度拥挤现象，可能因恒牙较乳牙大，随着颌骨的增大和乳磨牙与前磨牙的替换等变化可自行调整

B.多生牙占据了恒牙的位置，常引起恒牙的错位萌出

C.唇系带异常可造成上中切牙之间出现间隙

D.咬上唇习惯容易形成前牙反，下颌前突及近中错等畸形
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翻译题

根据句意和汉语意思写出句中所缺单词。

1.He___________ (总是)reads books about football.

2.Tom gets lots of ___________(礼物) from his friends on his birthday.

3.Don't do that     __   (再).

4.This is one of the biggest_____________(餐馆)in Beijing.

5.I often go to my ______________(祖父母)home on Sundays.

6.Thank you for ____________ (组织)this English party.

7.I can look for lots of ____________ (信息)on the Internet.

8.What's the ________ (价格)of the shirt?

9.It'_______________(传统的)to eat turkey on Thanksgiving Day.

10.Andy likes making__________(模型)planes very much.
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