问题
选择题
_____ students who have been admitted into university will be given help in _____ form of money. |
A. The; \ B. \; the C. The; the D. The; a |
答案
答案:C
_____ students who have been admitted into university will be given help in _____ form of money. |
A. The; \ B. \; the C. The; the D. The; a |
答案:C
对下列实验事实的解释正确的是( )
实验事实 | 解释 | |
A | 把一支洁净无锈的铁钉在试管中,并在试管口附近放一团棉花和氯化钙固体,盖上橡皮塞,一周后没有出现锈蚀现象 | 因为铁没有和氧气、水同时接触 |
B | 硫在空气里燃烧,发出微弱的淡蓝色火焰;在氧气里燃烧,发出蓝紫色火焰. | 硫和氧气反应时,氧气的相对含量不同,反应的剧烈程度不同. |
C | 洗涤剂能除去衣服上的油污 | 因为油污能溶解在洗涤剂中 |
D | 硝酸铵溶于水的过程,温度计插入液体后显示温度下降 | 硝酸铵溶解时,扩散过程放出的热量小于水合过程吸收的热量. |
A.A正确
B.B正确
C.C正确
D.D正确