幼儿类风湿关节炎是以何种表现为特征
A.急性风湿性关节炎
B.慢性风湿性关节炎
C.以侵犯大关节为主
D.以侵犯小关节为主
E.全身各关节均可受累
参考答案:B
—Why not find a new job?
—Why should I? I _____________ as much,but I like what I'm doing.
A.didn't earn
B.don't earn
C.hadn't earned
D.haven’t earned
日常生活中,区别下列各组物质的方法(括号内是方法),错误的是[ ]
A.面粉和苏打(加水振荡)
B.白酒和白醋(观察颜色)
C.热塑性塑料和热固性塑料(加热、冷却,看状态变化)
D.棉织衫和羊毛衫(抽丝灼烧,闻气味)