肾挫裂伤绝对卧床休息时间为()
A.1周
B.2—4周
C.6周
D.3个月
E.3—6个月
参考答案:B
She is listening ____ music, ____ the phone is ringing. [ ]
A. for; or
B. to; but
C. to; and
D. too; but
猖撅性龋齿常见于()
A.皮肌炎
B.混合性结缔组织病
C.系统性硬化症
D.干燥综合征
E.系统性红斑狼疮