干燥器返料风机的两个出口阀的作用是（）。A、调节风机风量 B、调节返料速度 C、控制

W: Are you still teaching at the junior high school
M: Not since June. My brother and I opened a restaurant as soon as he got out of the army.
Q: What do we learn about the man from the conversation().

A. He quit teaching in June.

B. He has left the army recently.

C. He opened a restaurant near the school.

D. He has taken over his brother’s business.

枢椎齿状突原发骨化中心有（）

A、1个 

B、2个 

C、3个 

D、4个 

E、以上均不对 

先天性心脏病的护理措施包括()

A．预防感染

B．防止并发症

C．做好心理护理

D．维持营养

E．提供充足的休息

男，42岁。因左腰部阵发性绞痛，辗转不安，伴恶心，排尿不适3小时来院急诊，过去有类似发作史。检查：左肾区明显叩痛，尿常规红细胞40/HP。下一步应首先给病人如何处理最合适()

A．立即做排泄性尿路造影

B．立即B超检查

C．急诊核素肾图检查

D．取清洁中段尿做普通培养

E．立即应用镇痛和解痉剂

每日营业终了，柜员尾箱的（）应换人复核。

A、现金

B、重要空白凭证

C、自制凭证

D、有价单证