真热假寒的病机是() A.热盛伤津耗气,以致阳虚而寒 B.阳热内盛,格阴于外 C.阳

题型:单项选择题 A型题

问题:

真热假寒的病机是()

A.热盛伤津耗气,以致阳虚而寒

B.阳热内盛,格阴于外

C.阳气内郁,阳不外达所致

D.邪热深陷于里而表寒未解

E.以上都不是

考点:中医全科(医学高级)中医诊断学中医诊断学题库
题型:单项选择题 A型题

一列波源在x=0处的简谐波,沿x轴正方向传播,周期为0.02s,t0时刻的波形如图所示。此时x=12cm处的质点P恰好开始振动。则

A.质点P开始振动时的方向沿y轴正方向

B.波源开始振动时的方向沿y轴负方向

C.此后一个周期内,质点P通过的路程为8cm

D.这列波的波速为4.00m/s

题型:单项选择题 A型题

(10分)某研究性学习小组将一定浓度Na2CO3溶液滴入CuSO4溶液中得到蓝色沉淀。甲同学认为沉淀可能是CuCO3;乙同学认为沉淀可能是Cu(OH)2

丙同学认为沉淀可能是CuCO3和Cu(OH)2的混合物。(查阅资料知:CuCO3和Cu(OH)2均不带结晶水)

Ⅰ.(1)乙同学的观点,你认为其原理是(用离子方程式表示):                    

(2)在探究沉淀成分前,须将沉淀从溶液中过滤、洗涤、低温干燥,检验沉淀是否洗涤干净的方法是                                         

Ⅱ.请用下图所示装置,选择必要的试剂,定性探究生成物的成分。

(3)B装置中试剂的化学式是        ,C装置中试剂的名称是             

(4)能证明乙同学观点正确的预期实验现象是                                

(5)若丙同学的观点正确,用上述装置通过B、C中质量的增加来定量测定沉淀的组成,该装置存在的主要缺点是                               (任答1条即可)。

题型:单项选择题 A型题

Every summer thousands of Americans stay at home instead of going on holiday because they're overweight. They don't want people to see them sunbathing and they don't want to have to squeeze into plane seats,But now,thanks to the growing number of weight-friendly holiday packages,the overweight are having their days in the sun.

"Overweight people will have a great time on our holidays as we don't judge them like other people do," said Liz Nickels,the owner of Big Adventures,a US-based company that hosts scuba-diving—a sport of swimming underwater while breathing through a tube connect­ed to a tank on your back for larger people. As a way to keep up with the demand for extralarge accommodation,many hotels in the US have started to offer features such as wide beds and hand-held showers. But the best in plus-size vacation lies at Mexico's Freedom Paradise,a 112-room resort(度假胜地) opening this month,which urges guests to" Live Large,Live Free" .

The hotel has wide doorways,reinforced furniture and extra large chairs. It also boasts a private beach to protect people from the stares that can occur on public bea­ches. "It's not a hotel just for large people. It's a size-friendly place where anyone can enjoy a holiday," said owner J urrian Kilnk,"What we noticed was that a lot of oversized people don't feel comfortable at resorts. "Staff members of all sizes are hired by the hotel to make overweight people feel OK.

Though many welcome the new service,some feel differently. "I have a real problem with this,"said Nancy Lenhart,the owner of Camp La Jolia,a Californian weight-loss and fit­ness camp.

"If you talk about oversized beds and doorways you are throwing their weight in their faces. Overweight people want to be normalized. They shouldn't be discriminated against like this. "

小题1: Large people don't want to go on holiday because        .

A.they don't like sunbathing

B.they don't want to be looked at

C.the planes are too crowded

D.hotels are not open to them小题2:In the first paragraph,weight-friendly holiday packages mean        .

A.there are some free packages for the overweight

B.people are friendly to the overweight

C.special holiday for the overweight

D.the overweight can lose weight小题3:Scuba-diving is a sport of swimming        .  

A.for people to lose weight

B.only for larger people

C.jumping from the platform

D.underwater小题4: Mexico's Freedom Paradise is a hotel        .

A.for people of all sizes

B.only intended for larger people

C.where everything is oversized

D.where larger people can live for free小题5:The underlined part" you are throwing their weight in their faces" means        .

A.you are beating them in the face

B.you are showing them that they are overweight

C.their faces seem bigger than others

D.you can make them lose weight

题型:单项选择题 A型题

吗啡主要用于

A.分娩镇痛
B.急性锐痛
C.慢性钝痛
D.胃肠绞痛
E.肾绞痛

题型:单项选择题 A型题

表示大气质量守恒定律的数学表达式称为()。

A.运动方程

B.连续方程

C.热力学能量方程

D.状态方程

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