仔鱼开口
参考答案：
仔鱼从鱼卵中孵化出来后，食管并未发育完全，只靠卵黄囊来提供营养，待卵黄囊完全被吸收以后，内脏器官发育完全，仔鱼才开始觅食称为开口。
维库溴铵的特点中，正确的是
A．肌松作用容易被胆碱脂酶抑制剂拮抗
B．肌松作用强，为泮库溴铵的1～1．5倍
C．释放组胺，可引起支气管痉挛
D．有抗迷走神经作用，缺血性心脏病患者慎用
E．主要在肝肾代谢，各占50％左右
根据题意及所给单词的首字母或汉语提示，写出单词的正确形式。
小题1:— What club do you want to j________?
— The swimming club.
小题2:Lucy is from the U.S.A., but she can s_________ Chinese well.
小题3:There are m________ kinds of fish in the river.
小题4:Tom always takes a s_________ to school in the morning.
小题5:— How f_______ is it from here to the library?
— It’s about three kilometers.
小题6:They usually do their ___________ (作业) in the evening.
小题7:My music classes __________ (结束) at 8:00 p.m.
小题8:The purple ________ (自行车) is new.
小题9:There are six students in my _________ (小组).
小题10:Can we _________ (步行) to the sports center?
