在时刻8:30,时钟上的时针和分针之间的夹角为[ ] A.85° B.75° C

题型:选择题

问题:

在时刻8:30,时钟上的时针和分针之间的夹角为[ ]

A.85°

B.75°

C.70°

D.60°

考点:角的概念
题型:选择题
书面表达(本题共15分)

有一种节约叫光盘,有一种公益叫光盘!所谓光盘,就是吃光你盘子中的食物。拒绝浪费,珍惜粮食!针对这项行动,并根据以下提示,请你以No Wasting On Food为题写一篇短文,号召大家参与这项活动。
注意:1. 短文必须包括所有内容要点,可适当发挥;
2. 短文标题与开头已为你写好,不计入总词数;
3. 词数:90左右。
Reasons
a waste of food, money,
pollute the environment

Suggestions
eat up all your food / clear your plate; 
leftovers(剩饭菜)…
order less or smaller dishes

 
No Wasting On Food
Recently, many restaurants in our country have joined the “Clearing Your Plate” campaign(活动)against wasting food by offering smaller dishes.                                                
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                             
题型:选择题

下列有关说法正确的是

A.7.45gNaClO中含有6.02×1022个NaClO分子

B.1.00 molNaClO中所有ClO的电子总数为26×6.02×1023

C.1 L2 mol/L明矾经水解可得到氢氧化铝胶体粒子数目为2×6.02×1023

D.将2.00 mol明矾完全溶于1.00 L 水中,得到溶液的物质的量浓度为2 mol/L

题型:选择题

患者,女,65岁,头晕恶心呕吐1周来诊,既往史高血压2年,右上肢BP 210/130mmHg,左上肢BP 200/110mmHg,双下肢BP测不清,HR80/min。

体检最可能的发现是

A.腹部血管杂音

B.心脏增大

C.视网膜正常

D.足背动脉搏动减弱

E.肝大

题型:选择题

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题型:选择题

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