胎怯，是指新生儿， ，脏腑形气均未充实的一种病症。
参考答案：体重低下，身材矮小。
化简： （1）（2x2﹣3x2﹣3）﹣（﹣x3+4x2）；
（2）5a2b﹣[2a2b﹣（ab2﹣2a2b﹣4）]﹣2ab2．
根据句意,用括号内所给动词的适当形式填空.
1. She ________ (watch) TV last night.
2. Mr Green enjoys ________ (work) in China.
3. He wants ________ (be) an English teacher in the future (将来).
4. They ________ (be) here yesterday.
5. I'd like you ________ (meet) my parents.
6. Listen! Who ________ (sing) in the room?
7. Tom usually ________ (get) up at six o'clock in the morning.
8. She likes ________ (draw) pictures.
9. Mrs Li ________ (live) in China last year.
10. Look! The boys ________ (play) football over there.
