问题
选择题
She’s hoping her first performance in the US will be the first step on the road to success, then she wants to try her ________ in Hollywood.
A.reputation
B.fortune
C.fame
D.target
答案
答案:B
She’s hoping her first performance in the US will be the first step on the road to success, then she wants to try her ________ in Hollywood.
A.reputation
B.fortune
C.fame
D.target
答案:B
在一个密闭容器中加入四种物质,在一定条件下充分反应,测得反应前后各物质的质量如下表:
物质 | 甲 | 乙 | 丙 | 丁 |
反应前质量/g | 2 | 2 | 21 | 5 |
反应后质量/g | 10 | 2 | 9 | 待测 |
通过分析,判断下列说法不正确的是
A.甲是生成物 B.测得反应后丁的质量为4g
C.乙可能是催化剂 D.该反应是分解反应