下述哪些疾病情况可以行膀胱镜检查()
A.大量肉眼血尿
B.活动期膀胱结核
C.急性膀胱炎症
D.膀胱结石伴有 * * 狭窄
E.膀胱肿瘤
参考答案:A, B, E
已知某固体材料自然状态下其外形体积为1.5 m3,密度为1800 kg/m3,孔隙率为25%,含水率为20%,则其含水量为( )kg。
A.337.5
B.405
C.450
D.540
Even at an early stage the school felt that she ________a good chance of passing her exams.
A.stood
B.gained
C.possessed
D.took