题目内容

糖皮质激素诱发和加重感染的主要原因是( )

A. 抑制炎症反应和免疫反应,降低机体的防御能力
B. 用量不足,症状未获得控制
C. 促使许多病原微生物繁殖所致
D. 病人对激素敏感性降低
E. 糖皮质激素选择性低，不良反应多

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Task 1 Please write down the missing words or phrases according to what you hear.There are two ways to make a hotel room reservation. Firstly, to make a reservation ( 1 ) use our online Room Reservation Services. Click here to begin the registration ( 2 ) to check ( 3 ) and then make a reservation. Secondly, you can also make a room reservation through a ( 4 ) listed below. Worldwide travel agencies that service Hakone Hotel Kowakien : EGL Tours Company Limited ( Hong Kong ).The hotline is (852)3692-0888.The Fax number is ( 5 ). The address is 15/F EGL Tower, NO. 83 Hung To Road. Kwun Tong, Kowloon, Hong Kong.

信息源中的同一信息可以为多个信息接受者使用,这种特性称为信息的( )

A. 扩散性
B. 共享性
C. 时效性
D. 储存性

信息与其他物资资源一样,会随着使用频率的加大而发生损耗。( )

A. 对
B. 错

简述城轨中集中告警系统的作用。