能引起菊粉清除率降低的疾病有（）
A.心力衰竭
B.慢性肾炎
C.急性肾炎
D.膀胱炎
E. * * 炎
参考答案：A, B, C
引起学生注意是教学过程中的首要事件。教师可以通过三种方式来引导学生的注意：_____、_____、_____。
用括号内所给动词的适当形式填空。
1. It _ (be) very windy yesterday. So we had to stay at home.
2. —Did you _ ( go) to the park last week?
—Yes, I _ ( do).
3. His funny joke _ ( make) me laugh yesterday.
4. I am __ (real) sorry. I'm late.
5. He often _ ( play) basketball with his classmates.
