在DOS系统中，要列出当前目录下，所有第三个字母是Y的文件的命令

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问题单项选择题

在DOS系统中，要列出当前目录下，所有第三个字母是Y的文件的命令是（）。

A、dir？Y？.*

B、dir？？Y*.*

C、dir*Y*

D、dir？？Y？.*

答案

参考答案：B

填空题

根据短文内容及首字母提示，补全空格内单词,使短文完整、通顺。

Dragon Boat Festival is an important day in C 1 . It is in May or June. During the festival, most

people e 2 rice dumplings. And t 3 are also dragon boat races(比赛) in many places. The b 4

are long and have dragon heads. People get together to w 5 the races. They shout f 6 their

favourite team. Now y 7 people don't like to c 8 this festival, but it is important for the old

people. O 9 that day every year, students, w 10 , teachers, and many other people have a holiday

to celebrate the festival.

单项选择题

下列符合急性甲肝潜伏期的检测结果是

A．TB 150μmol/L DB 50.6μmol/LALT l20U/L AST 80U/L

B．TB 25μmol/L DB 10.6μmol/LALT 120U/L AST 80U/L

C．TB 150μmol/L DB 6.6μmol/LALT 80U/L AST 120U/L

D．TB 15μmol/L DB 12.6μmol/LALT 120U/L AST 80U/L

E．TB 25μmol/L DB 10.6μmol/LALT 20U/L AST 18U/L