小明的电子邮件地址是：xiaoming@qq.com，其中的“qq.com”是（）。

根据短文内容和首字母提示，在下文空格处填入适当的词使短文完整。（每空一词）

Mike is English. But he can s__小题1:____ English, Japanese and C_小题2:__. He is studying at a school in Shanghai. He has four c__小题3:__ in the morning and two in the afternoon. He loves sports, b_小题4:___ he doesn’t like Maths. O__小题5:___ Friday afternoon, he often plays football in the playground. He usually stays at h__小题6:__ and does his homework on Saturdays. On S_小题7:___, he sometimes plays games w_小题8:____ his Chinese friends. His father w_小题9:____ in Shanghai. He teaches English. Mike and his father are very h_小题10:___ here.

一位25岁男子来到门诊，述三个月前下楼梯时左膝扭伤，当时膝部肿胀，疼痛，二周后好转。近日关节不稳，伴疼痛。体检：左股四头肌轻度肌萎缩，内侧关节间隙压痛，回旋挤压试验(±)。X线片未见异常。对确诊最可靠的检查是

A．关节穿刺关节液检查

B．超声波检查

C．关节镜检查

D．X线断层

E．ECT检查

讨论法有什么特点它与探究——研讨教学方法在运用上有什么不同

中国煤分为三类：无烟煤、烟煤、（）。

A.褐煤

B.贫煤

C.肥煤

在下列共有关系中，属于按份共有的是( )。

A．夫妻共有财产

B．家庭共有财产

C．合伙积累财产

D．两人各出半价合买的耕牛