问题
单项选择题
为了防止树脂污染,要求进入钠离子交换器的原水悬浮物含量()。
A、≤20MG/L
B、≤10MG/L
C、≤5MG/L
D、≤3MG/L
答案
参考答案:C
为了防止树脂污染,要求进入钠离子交换器的原水悬浮物含量()。
A、≤20MG/L
B、≤10MG/L
C、≤5MG/L
D、≤3MG/L
参考答案:C
补全对话 从方框中所给的选项中选择正确的句子补全对话。(10分)
A: Good afternoon, Doctor Huang. B: 小题1: What’s wrong with you? A: 小题2: B: Do you have a cough? A: 小题3: I cough now and then. B: How long have you been like this? A: 小题4: And I’m feeling terrible now. B: Let me check you over. Oh, you have a fever, too. A: Is it serious? B: Nothing serious. Take this medicine and drink more water. A: 小题5: B: Three times a day. Have a good rest and you’ll be all right soon. A; Thanks a lot. B: Not at all. |