皮皮学，免费搜题
登录
搜题
【判断题】
执行器的推动装置,它按控制信号压力的大小产生相应的推力,推动控制机构动作,所以它是将信号压力的大小转换为阀杆位移的装置。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】听力原文： A boy became interested in computers at the age of eight, and by eighteen he was suffering from a computer related disease. It is said that the boy was so obsessed with computers that he acquire...
A.
At the age of 7.
B.
At the age of 8.
C.
At the age of 9.
D.
At the age of 18.
【单选题】.Was it in 2000_________he was still in middle school_________this boy became an expert at computer?
A.
when; that
B.
that; where
C.
when; where
D.
that; that
【多选题】有关信用保障手续费的说法正确的是( )
A.
以一达通名义正式报关--无服务费
B.
以一达通名义正式报关—订单金额1%手续费
C.
买家通过点击一口价产品”buy now“起草的信用保障订单手续费为5%
D.
非一达通名义正式报关--订单金额3%手续费
【单选题】Was it in 2002 __________ he was still at middle school __________ the boy became expert at computer?
A.
that; where
B.
when; where
C.
that; when
D.
when; that
【单选题】How about the boy when Dr. Johnson arrived in the hospital?
A.
The boy became better.
B.
The boy died.
C.
The boy disappeared.
【简答题】控制食品发酵的因素
相关题目：