1.简答题- (共2题)
2.单选题- (共12题)
A.水是由氢气和氧气组成 |
B.硬水经过过滤可以转化为软水 |
C.水是由氢分子和一个氧原子构成 |
D.农业上化肥、农药的不合理使用,会造成水污染 |
3.选择题- (共8题)
—I promise her daughter ________ get a nice present on her birthday.
—Will it be a big surprise to her?
—Mom, who won the first place in the TV show I' m a singer?
—It ________ be Han Hong, but I' m not sure. Last Friday I missed it.
—Why! I couldn't get you on the phone this morning.
—We ________ tennis in the yard when you phoned me.
—Why! I couldn't get you on the phone this morning.
—We ________ tennis in the yard when you phoned me.
The government is discussing the problem right now. It will ________ have been solved by the end of next month.
The doctor advises us to exercise ________ on hazy (雾霾) days because it may influence our health.
4.填空题- (共6题)

①B中反应的文字表达式___________________________。
②B实验中的实验现象是_____________________________。
③小明通过A与B的对比实验可得知的结论是_____________________。
-
【1】题量占比
简答题:(2道)
单选题:(12道)
选择题:(8道)
填空题:(6道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:1
7星难题:0
8星难题:7
9星难题:12