尿液呈浓茶色或酱油色，常见于A．肾盂肾炎 B．泌尿系结石 C．急性溶血 D．肝细胞性

革兰阴性菌尿路感染的诊断标准为：中段尿细菌计数为（）

A.>10⁵CFU/ml

B.>10⁶CFU/ml

C.>10⁷CFU/ml

D.>10⁸CFU/ml

E.>10⁹CFU/ml

-----Who ______ it be that hasn’t handed it in yesterday?

------It _______ be Bob. He handed it in yesterday.

A．can; mustn’t

B．must; can

C．can; can’t

D．may; mustn’t

Sie ist ____ als ich. (alt)

屠宰畜、禽的检验规程由（）会同国务院卫生行政部门制定。

A.国务院农业行政部门

B.国务院林业行政部门

C.国务院食品药品监督管理部门

D.国务院畜牧业行政部门

At a certain university, if 50 percent of the people who inquire about admission policies actually submit applications for admission, what percent of those who submit applications for admission enroll in classes at the university ？（）
(1)Fifteen percent of those who submit applications for admission are accepted at the university.
(2)Eighty percent of those who are accepted send a deposit to the university.

A．条件(1)充分，但条件(2)不充分．

B．条件(2)充分，但条件(1)不充分．

C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．

D．条件(1)充分，条件(2)也充分．

E．条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．