A：38
B：58
C：316
D：516
反应时间/min
0
2
4
6
8
10
12
14
16
18
烧杯及所盛物质总质量/g
115.0
114.0
113.0
112.0
111.2
110.9
110.7
110.6
试计算:该石灰石样品中CaCO3的质量分数。(计算结果精确至0.1%)
春游湖
（宋）徐府
双飞燕子几时回？夹岸桃花蘸水开。
春雨断桥人不渡，小舟撑出柳阴来。
填空 根据句子意思，用所给单词的适当形式填空，将答案写在答卷上。⑴Can you imagine his ____ (walk) on the moon?⑵The little girl____ (prefer) the red one and her mother bought it for her at last.⑶Can you ____ (memory) all the words in one week?⑷The cat's ____ (die) brought the whole family much sorrow.⑸You ought to pay attention to ____ (listen) to the teacher carefully in class and be more careful not to make any stupid mistake..⑹She remembered____ (close) the windows, but when she came back she found them all ____ (open).⑺Finally she finished the tough work by herself ____ (success).⑻Nowadays a great number of ____ (woman doctor) are very successful .⑼ I am used to____ (send) her e-mails instead of____ (write) letters.⑽Unless Tina ____ (study) harder from now on, she____ (fail) the exam.
进入初中后，你认为和新同学和谐相处要做到（ ）①相互尊重 ②相互帮助 ③相互信任 ④相互理解
在经济全球化的背景下，要实现从“中国制造”到“中国创造”的跨越， 我们必须（ ）
