急性化脓性中耳炎病程超过多少周中耳炎症仍然存在称慢性化脓性中耳炎（） A.2～4周

小轿车的座位，如有司机驾驶时，以（）为首位，

A.后排左侧

B.后排右侧

C.后排中间

D.驾驶座右侧

Many of the activities performed during the preliminary investigation are still being conducted in（）, but in much greater depth than before. During this phase, the analyst must become fully aware of the（） and must develop enough knowledge about the （） and the existing systems to enable an effective solution to be proposed and implemented. Besides the（）for process and data of current system, the deliverable from this phase also includes the （） for the proposed system.

A．analysis phase

B．design phase

C．implementation phase

D．maintenance phase

接触器吸引线圈绝缘电阻应不低于（）MΩ。

A.0.2

B.0.38

C.0.5

D.1

批发市场是一个独特的批发组织，因而也具有独特的功能，具体表现在( )。

A．媒介功能

B．服务功能

C．管理功能

D．经济辐射功能

E．满足市场需求

白通汤与通脉四逆汤中相同的药物是（）

A.干姜，附子

B.附子，甘草

C.附子，葱白

D.甘草，干姜

E.干姜，葱白