痈的常见致病菌（）
A.乙型溶血性链球菌
B.梭状芽孢杆菌
C.金黄色葡萄球菌
D.大肠杆菌
E.铜绿假单胞菌
参考答案：C
情景对话。
A: Look at the photo! Who's 1. _____ woman?
B: 2. _____ is my mother.
A: Who's that man?
B: 3. _____ is my father.
A: And 4. _____that your brother?
B: Yes, 5. _____is.
A: What's 6. _____name?
B: His name is Jack.
A: How do you 7. _____it?
B: J-A-C-K, Jack.
A: How old is 8. _____?
B: He is eight.
A: Who's that?
B: Oh, she is my sister. 9. _____ 10_____is Mary.
日常肮空天气报告中，能见度电码“9999’’表示的是（）.
A.能见度≥lO千米
B.能见度大干1O千米
C.能见度为9999米
