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[单选题]
下列说法正确的是（??）
A
稀溶液一定是不饱和溶液
B
向NaCl饱和溶液中加入少量KNO3固体，KNO2不会溶解
C
通常情况下，CO2在水中的溶解度比NH3在水中的溶解度大
D
升高温度不一定能使任何饱和溶液都变成不饱和溶液
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试题答案：
D
答案解释：
相关题目
同位素是指原子核的（??）
如图所示，从绕在铁芯上的线圈AB的O点引出一个抽头，已知AO间的匝数为n1，BO间的匝数为n2,当BO间的交变电压为U2时，AB间的交变电压为（??）
物体做初速度为零的匀加速直线运动，在t1时的位移为s，在t2时的位移为4s，则在0到t1与t1到t2这两段时间内外力的冲量之比为（??）
某人在10 m高的平台上以10 m／s的初速度斜向上抛出一个质量为0．5 kg的物体，物体着地时的速度为15 m／s，那么这个人在把物体抛出时做的功等于__________J。物体在运动过程中克服空气阻力做的功等于__________J。(g取10 m／s2)
元素Y、Z的原子序数都小于l8，1 mol的Y单质与足量HCl反应，生成22.4 L(标准状况下)氢气。元素Y与Z原子核外电子数之和为29。元素Y和Z相互作用形成化合物的电子式为__________。
可以在溶液中大量共存，且溶液呈无色的一组离子是（ ）
以下关于波的衍射的说法，正确的是（??）
下列各组气体中通常情况下能共存，并且都能用浓H2SO4或碱石灰干燥的是（??）
乙醇跟氢卤酸反应生成卤代烃和水的化学方程式为__________。
如图所示，在弹簧下端悬挂一质量为m的物体，弹簧原长为ι0，O为物体的平衡位置，现用手托着该物体，使它由弹簧原长处缓慢地移至平衡位置，手的托力对物体所做的功大小为W，现重新将此物体移至弹簧原长处，并由静止开始释放，则物体下降至平衡位置时的速度大小为__________．
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资本主义的发展为向社会主义过渡准备了物质基础和经济条件，这主要指（ ）
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乙公司为增值税一般纳税人， 2014 年 12 月发生以下经济业务： (1)10 日，销售给 A 公司商品一批。价目表上的商品售价 200 000 元。由于 A 公司是成批购入， 所以乙公司提供 5%的商业折扣。 乙公司已将发票账单等交付 A 公司，款项尚未收到。该批商品的实际成本 150 000 元。 (2)11 日，上月销售给 B 公司商品一批，货款未收。 B 公司在验收时发现商品质量未达到合同标准。经协商，乙公司在价格上给予 10%的折让，该批商品价企业会计学试卷第 4 页 共
3.
22.在结构化程序设计中，模块间的耦合性低的好处是
4.
22. Love really is blind when it comes to physical flaws, it would seem.A research conducted by Social studies Center in University of Hawaii at Manoa suggests that when we love someone, we tend to overlook their crooked noses, big tummies or other attributes that might put others off. As a result, husbands and wives think their other halves are more attractive than they really are. No wonder Chinese has the saying that “Beauty lies in the beholder’s eyes”. This phenomenon could also help explain some physically mis-matched couples such as the glamorous Beyonce and Jay-Z, the striking Lara Stone and David Walliams.The so-called “positive illusion” theory comes from an experiment in which researchers asked 70 couples to rate their other halves for attractiveness. Questions included how attractive their husband, wife, boyfriend or girlfriend was to the opposite sex, and how they rated compared with others of the same age. The answers were kept secret to prevent any partners from being upset and distressed. Some of those taking part also rated photos of their partners. In addition, members of the public judged the looks of all 140 men and women taking part.The results revealed that couples view their other halves as being better looking than they really are. Even asking them to rate pictures of their partners did not give them a reality check, the Journal of Social and Personal Relationships reports.With previous studies finding that we view our loved ones as being kinder and more intelligent than they actually are, it does seem that love is blind in all sorts of ways. Those studied were young and had been together on average for just two and a half years. The researchers said that more work was needed to see if those in long marriages were still blind to their partner’s physical flaws. With previous studies finding that we view our loved ones as being kinder and more intelligent than they actually are, it does seem that love is blind in all sorts of ways. Those studied were young and had been together on average for just two and a half years. The researchers said that more work was needed to see if those in long marriages were still blind to their partner’s physical flaws.(10分)22.1 Which of the following is the CORRECT interpretation of the first paragraph?(2分)A. When people are in love, they are unable to see things that are obvious to others.B. People in love tend to be unaware of physical weakness of their partners. C. To those who are physically weak, they do not notice love.D. When speaking of physical flaws, love is not reasonable.
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