选择题：Which of the following environmental factors are MOST important to monitor in order to protectcomputer equipment?()

风筝源于什么时代,至今已2000余年( )A.春秋B.三国C.东汉

Which of the following is an invalid IPv4 address?()

是民用航空和整个社会的结合点,机场也是一个地区的公众服务设施A.民用航空B.机场C.民航企业D.

Which of the following displays uses gas as a method for projecting an image?()

An administrator needs to update a router configuration for a router that does not support SSH.Which of the following can be used to securely update the router configuration?()