最大的两位数比最大的一位数多[ ] A．90 B．9 C．1

Many students agreed to come, but some students against because they said they don't have time.

A．were against because they said they did not

B．were against because they say they don't

C．were against it because they said they did not

D．were against coming because they said they don't

尿路感染最主要的易感因素是（）

A.糖尿病

B.使用导尿管

C.尿路梗阻

D.膀胱输尿管反流

E.妊娠

临床诊疗的医学道德原则中的最优化原则内容不 包括

A．病痛最小

B．耗费最少

C．安全度最高

D．寿命最长

E．疗效最好

为了进一步鉴别诊断应行下列哪项检查最直接

A．MRI
B．CT
C．肝动脉造影
D．B超下穿刺活检
E．肝脏B超

钢结构摩擦面的抗滑移系数检验应以钢结构制作检验批为单位，由制作厂和安装单位分别进行，每一检验批设（）。

A、1组

B、2组

C、3组