若以下选项中的变量已正确定义,则正确的赋值语句是( )。
A.x1=26.8%3
B.1+2=x2
C.x3=0x12
D.x4=1+2=3;
参考答案:C
补全对话。根据下面的对话情景,在每个空白处填上一个适当的句子,使对话的意义连贯、完整。
A: Excuse me, 1. _____________________? I haven't seen him for weeks.
B: Jim's gone to England.
A: Really? 2. _____________________?
B: He went there last week.
A: 3. __________________________?
B: Yes. He had lived there for 15 years before he came to China.
A: 4. ___________________________?
B: He traveled with his friends.
A: 5. ___________________________?
B: He'll be away for about two weeks.
A: Oh, thank you. I'll phone him this evening.
节水型城市工业用水重复利用率的考核目标是()。
A、≥80%
B、≥75%
C、≥60%
D、≥65%