慢性肾小球肾炎高血压型的主要特点是 A．轻度水肿 B．大量蛋白尿 C．中度以上高血压

前哨淋巴结

伤亡事故发生后，负伤者或者事故现场有关人员应当立即（）报告企业负责人。

A.逐级

B.直接 

C.直接或者逐级

对肝癌诊断最有价值的体征是哪项

A.肝脏大小

B.肝脏的质地

C.肝脏表面是否有结节

D.肝脏表面可听到血管杂音

E.压痛程度

职务发明创造申请专利的权利属于 ( )。

A．发明人

B．单位

C．发明人和单位共有

D．国家

(1) In the strength of the carrier signal is varied to represent binary 1 or 0.

(2) is a system that can map a name to an address and conversely an address to an name.

(3) is a three-way handshaking authentication protocol that it’s packets are encapsulated in the point-to-point protocol

(4) is an approach that enables an ATM Switch to behave like a LAN switch.

(5) is an guided media which is made of glass or plastic and transmits signals in the form of light.

1（）

A．ASK

B．PSK

C．FSK

D．FDM