小儿洋地黄中毒的最常见表现为 A．室性期前收缩 B．食欲缺乏、呕吐 C．传导阻滞 D

3.6×100______ 3.6×0．

根据对话内容，从方框中选择最佳选项（其中有两项多余）。

A:Can I help you? B :Yes, please. Today is Mother's Day______1______but I have no idea what to buy. A: _______2_______ B:G.reat !  But______3_______ roses or carnations(康乃馨)? A: I think carnations are better. They show happiness, sweetness and love. They are for mothers . B : How much are they? A:____  4________ B :OK.  I'II take it. ______5________ A.Thank you and best wishes to your mother.

A.Maybe you can buy her some flowers. B.Twenty yuan a bunch. C.I want a present for my mother. D.How nice! E.Here is the money. F.What shall I do? G.Which flowers shall I buy?

1.______________ 2._______________ 3._____________ 4.______________ 5.______________

试验表明，在压力加工过程中，随变形速度的增加，摩擦系数要下降。

Outline: 1. General situation of crime victims in U. S.

2. The most frequent victims of crimes and their implications.

3. Your comments.

 

CRIMES VICTIMS BY AGE COMPARED

WITH TYPE OF CRIME

 

废旧物料的回收可以弥补（）的不足。

A.自然资源

B.生产力

C.生产方式

D.管理水平