两个等底等高的三角形都能拼成一个平行四边形．______．
等底等高的两个三角形，不一定能拼成一个平行四边形．如下图
故答案为：×．
经常为盆栽植物松土，可以[ ]
A．增强光合作用
B．增强蒸腾作用
C．增强呼吸作用
D．降低呼吸作用
Once you __ working with the professor, you will find he is not as tough as expected.
A．become accustomed to
B．object to
C．are opposed to
D．admit to
