下列有关风湿病的描述,错误的是
A.可累及全身结缔组织
B.属于变态反应性疾病
C.心脏病变的后果最为严重
D.与溶血性链球菌感染有关
E.风湿性关节炎常导致关节畸形
参考答案:E
在“探究小车速度随时间变化的规律”实验中,用到的测量工具是(有二个)__________。
根据句意,用括号内所给单词的适当形式填空。
小题1:Jerry (go)to school at seven o’clock.
小题2:Can you play the violin (good)?
小题3:It takes (she)an hour (do)her homework.
小题4:Look! The two girls (talk) over there.
小题5:We need help for our (swim)club.
小题6:Let’s (see) the pandas first.
小题7:He is an (America) boy.
小题8: (not be) late for school again.