B项,none 意为“一个都没有”,指代人或物品,可用于回答 How many/How much 引导的疑问句; C项,no one 意为“没有人”,指代人,可用于回答 How many/Who 引导的疑问句; D项,not 意为“不是”,不能做代词; 根据句意,此处应回答“没有一点盐”,所以A、C、D项均不合题意。 故正确答案为B。...
[答案]B [解析] [详解]句意:——你往水里加了多少盐?——一点没有。 考查不定代词辨析。nothing没有东西,指物;none一个也没有,指人或物;no one一个没有,指人;not用于构成否定句。nothing回答what问句,none回答How many/much问句,no one回答who问句,根据句意语境,可知ACD三项意思都不合句意,故选B。...
SHENZHEN, March 25 (Xinhua) -- Chinese scientists, in collaboration with their counterparts from the Republic of Korea, have observed the dissolution process of salt in water at the atomic level for the first time using a single-ion control technique and successfully controlled this process. The ...
aThere is some salt in the sea water. 有一些盐在海水。[translate] aA “variation” shall mean any change in the original contract intention as deduced from the contract as a whole describing the work to be carried out 整体上“变异”将意味在原始合同意图上的所有变化如从描述工作的合同被推论将...
The insoluble salt that emerges from the solution is referred to as the precipitate. Precipitation reactions in the solution can help to determine the identity of different ions.Answer and Explanation: You can test a water sample for lead by adding a solution of hydrogen sulfide (H{eq}\rm _...
Add a pinch of salt in water when boiling, this will make eggs more easy to peel :) Put eggs in pot cover with water bring to boil and then take off heater once it's boiled. Let sit for 25 mins and it's done ! I find it easier to place cold eggs in the water right before ...
解析 A 细节题。在文章开头有一段话:One of these is the subtraction of water from the ocean by means of evaporation―conversion of liquid water to water vapor.In this manner,the salinity is increased,since the salts stay behind.这段话告诉我们食用盐就是利用这种蒸发(evaporation)方式形成的。
Why do you need to test the pH level in your aquarium? To put it simply, water that’s too acidic or alkaline for your fish can interfere with their basic body functions. This can leave your fish vulnerable to disease pH changes are particularly hard on young fish or fish that are alre...
- Yes, I'd love to. A.aB.anC.theD./ 查看答案和解析>> 科目:初中英语 来源: 题型: 【题目】—Excuse me, would you like mind helping me with the math problem?—I'm sorry. , I'm in a hurry.A.In generalB.In factC.By the wayD.Of course 查看答案和解析>> 科目...
3.Add about five spoons of salt to the water. Test to see if the egg goes up. 4.Add more salt if the egg is still at the bottom. The science behind it: Things go down in the water when they are denser (密度更大的) than the water. By adding salt, we make the water denser....