期末考试后,李娜先知道了语文和外语的成绩,两科的平均分是93分。李娜最有把握的一科是数学,数学必须考多少分才能使三科的平均分是95分?
(95-93)×3+93=99(分)
质量改进包括()。
A.防守型改进
B.维持型改进
C.进攻型改进
D.变革型改进
E.突破型改进
句型转换。
1. There are some interesting storybooks for you. (改为一般疑问句)
______ ______ ______ interesting storybooks for me?
2. Jack had a meeting on Monday afternoon. (对画线部分提问)
______ ______ Jack ______ a meeting?
3. I hope to visit my old friends this weekend. (改为同义句)
I hope ______ ______visit my old friends this weekend.
4. It rained hard last night. (改为同义句)
There ______ a heavy ______ night.
5. He isn't a lazy boy. (改为同义句)
The boy ______ ______.