10月1日18时59分57秒，西昌卫星发射中心。大地轰鸣，__________探

一般情况下，险位超赔分保中事故总赔款限制为险位限额的（）倍。

A.1～2

B.1～3

C.3～4

D.2～3

根据句意写单词

1. —Could you please take out the           ?

    —The dustbin is full of dirty things.

2. Katy is a good girl. She often helps her mother do the            at home. So their house is always very

clean.

3. Tom, what are you doing here?  Look at the floor!           it .right now(马上).

4. Could you please           your clothes, Susan?  Look at them. What a mess!

5. —Who does the           at your home?

    —I do. You know, my parents work hard every day and they are very tired after dinner.

如图，在光滑水平桌面上有一边长为L、电阻为R的正方形导线框；在导线框右侧有一宽度为d（d＞L ）的条形匀强磁场区域，磁场的边界与导线框的一边平行，磁场方向竖直向下。导线框以某一初速度向右运动，t=0时导线框的的右边恰与磁场的左边界重合，随后导线框进入并通过磁场区域。下列v-t图像中，可能正确描述上述过程的是

A．

B．

C．

D．

简答送达的特点。

下列哪项支持急性心肌炎而不利于扩张型心肌病的诊断。（）

A.心电图显示多样易变的心律失常

B.发病前1～3周有上呼吸到感染史，体检时心率增快与体温升高不相称

C.心尖部可闻2/6～4/6级收缩期杂音及舒张期奔马律

D.血清CK增高

E.出现劳力性呼吸困难