类风湿关节炎最早出现的关节症状是（） A.活动障碍 B.关节肿 C.关节畸形 D.关

脑血栓形成最常见的病因是()

A.动脉瘤

B.脑动脉粥样硬化

C.多种脑动脉炎

D.寒冷季节

E.缺氧

超声检测脑血管搏动指数增高可见于：①新生儿；②颅内压增高；③脑动脉硬化；④脑内动静脉瘘（）。

A.①②③

B.①③

C.①②④

D.②③④

E.①②③④

根据所给的汉语提示，转换下列句型。

1. Hemingway is my favorite author. (改为同义句)

    I _____ Hemingway _____of all.

2. The old woman looked worried because she lost her way. (对画线部分提问)

    _____        _  the old woman look worried?

3. I haven't seen her mother for two years. (对画线部分提问)

    ___                haven't you seen her mother?

4. Jim feels so anxious that he doesn't get on the plane. (改为简单句)

    Jim feels _____            to get on the plane.

5. The boy can hardly believe his eyes when he gets a new bike. (改为反意疑问句)

    The boy can hardly believe his eyes when he gets a new bike, _____ _____?

下列各资产中，不属于流动资产的是( )。

A．短期投资

B．存货

C．预付账款

D．无形资产

（）是依靠适当的钻井液密度来控制住地层压力。

A、一级井控

B、二级井控

C、三级井控

D、压井