将压扁的乒乓球放入热水中会重新鼓起,是由于球内的气体分子 A.体积增大 B.质量

题型:选择题

问题:

将压扁的乒乓球放入热水中会重新鼓起,是由于球内的气体分子

A.体积增大

B.质量增大

C.间隔增大

D.个数增多

考点:分子的定义验证分子特点的实验离子结构示意图构成物质的微粒(分子、原子、离子)
题型:选择题
阅读理解。
NO BOATING IN ANY PART OF THE LAKE①
Cough Medicine.
Shake well before use. Take three times a day after meals.
Each time: Adults: 2 teaspoonfuls.
Children: 8-14 1 teaspoonful.
               4-7  0. 5 teaspoonful.
Not for children below the age of 4.
Keep in a cold place. Use before October, 2008②
FAST FOOD
OPEN HOURS
WEEKDAY
8:00 A. M-8 :00 P. M.
WEEKEND
10:00 A. M-11:00 P. M.③
根据表格内容,选择正确答案。
1. From the first sign we know we can not _____ in the lake.
A. boat            
B. fish              
C. swim
2. Helen is six years old, and she's got a bad cough.  She should take _____ a day.
A. 0.5 teaspoonful    
B. 2 teaspoonfuls      
C. 1.5 teaspoonfuls
3. The cough medicine can't be taken by _____.
A. a four-year-old child
B. a three-year-old child
C. a seven-year-old child
4. You'd better _____ if you want to take part in the outing on Sunday.
A. put on an old coat  
B. take your camera    
C. wear strong shoes
5. The fast food shop isn't open _____.
A. at 9:00 P. M.  on Thursday
B. at 10:00 A. M.  on Friday
C. at 9:00 P. M.  on Saturday
题型:选择题

下列哪项应考虑急性心肌梗死的可能()

A.夜间发生心绞痛

B.卧位型心绞痛

C.缺血性胸痛持续大于30分钟

D.恶化劳力型心绞痛

E.新近发生心绞痛

题型:选择题

患者,缺失,为判断是否有条件做基牙设计双端固定桥,最重要的一项检查是()

A.牙髓电活力测试

B.牙髓温度测试

C.X线片检查

D.叩诊

E.牙周探诊

题型:选择题

认真阅读“给定资料7”,简要回答下列两题。
1.请从政策角度出发,对南方科技大学拿不到“招生权”的原因做简要分析。
[要求] 分析思考条理清楚、观点明确。字数不超过200字。

题型:选择题

细脉、微脉、弱脉、濡脉指感的共同点是脉形()脉势()

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