最新试题
消火栓体系可采用()供水方式。
(3):()
(5):()
How long does a handshake usually last?()
(3)().
(8)().
(2):()
The underlined word “streamline”in Para.3 is closest in meaning to().
(10)().
你认为决定联想采用多元化或专业化的背景是什么?