带下病的主要发病机理是（） A．外感湿邪，损及任、带脉，约固无力 B．肾气不足，封藏

     Jack and Sally are brother and sister. They are twins. They like to swim and ride a bike. They like

to fly kites, too. They often run with the kites near a river. The kites are very high. They look very

happy. But not all of their favorite games are the same. Jack likes to play football and Sally likes to

play basketball. Jack likes to jump high, he thinks it’s easy, but Sally thinks it’s very hard. Sally likes

to make things, but Jack can’t. Sally can sing very well and Jack can throw the yo-yo very well. Sally

wants a go and Jack helps her.

根据短文内容，判断句子正( T )、误 ( F )。

( )1. Jack and Sally are classmates.

( )2. Jack and Sally often fly the kites near a river.

( )3. Their favorite games are the same.

( )4. Sally likes to jump high.

( )5. Sally can sing very well, but Jack can’t.

胃窦癌第二站淋巴结包括（）

A.贲门右淋巴结

B.脾动脉旁淋巴结

C.胃左动脉旁淋巴结

D.肝总动脉旁淋巴结

E.腹腔动脉周围淋巴结

下列关于我国语言文字的说法，错误的是( )。

A．我国共有80种以上的语言，约30种文字
B．汉语是我国使用人数最多的语言
C．现代汉语有标准语(普通话)和方言之分
D．汉字最早成熟于商代，以甲骨和石头为主要载体

足球员犯规或绊倒时判罚的原地踢球称为（）

A.自由球

B.角球

C.边界球

D.12码球

什么是直接还原铁？