用化学分析法测得某有机物的化学元素及含量如下表所示，该物质最可能是
A．核酸
B．脂肪
C．蛋白质
D．糖类
答案：C
— What's wrong with you?
— ________. [ ]
A. My bike is broke
B. I have a stomachache
C. My TV doesn't work
D. My watch can't go
【问题4】 防火墙的规则配置包括哪些策略
