Farah became pale after going to her father because________.
A:he didn’t allow her to go to Spain
B:she didn’t do well in her exams
C:she had to leave Purple Girls Club
D:he asked her to improve her grades
在公众场所,一个人吸烟,其他人都会“被动吸烟”,这是因为( )
下列不属于化学研究对象的是( )
自从学习光现象以来,我们分别学习了实像和虚像,对于这两种像的区别与联系掌握起来却有点麻烦.实像是由实际光线会聚的,而且是倒立的,并且能用光屏承接;虚像是由实际光线的反向延长线会聚的,因此不能用光屏承接,并且都是正立的;无论是实像还是虚像都能用眼睛看到.
请根据上述信息回答一下问题:
改错。
My sister have long hair and big eyes.
____
Would you please tell me________to deal with all the problems, Mr Feng?