泄漏电缆作为当前地铁信号覆盖的主要传输设置之一越来越受到人们的重视，泄漏电缆一般分为（）与（）两种。
参考答案：耦合式泄漏电缆；辐射式泄漏电缆
根据首字母或汉语提示写出单词
1. The policeman made a polite g_______ at the driver to stop the car.
2. We couldn’t have a picnic because of the s_______ change in the weather.
3. B________ is thicker than water.
4. The children stood _________ (不动)and watched as the deer came closer.
5. It's very _______ (安静的)out here in the woods.
以下提供若干组考题，每组考题共用在考题前列出的A、B、C、D、E五个备选答案。请从中选择一个与问题关系最密切的答案。某个备选答案可能被选择一次、多次或不被选择。
甲型肝炎患者，血清学检查表现为
A．anti-HEV阳性 B．抗核抗体(ANA)阳性 C．anti-HCV阳性 D．HBsAg阳性 E．anti-HAVIgM阳性
