_________(59)A. occasionally B.neverC.rarely D.co

During the lecture, the speaker occasionally ___ ？

答案解析

During the lecture, the speaker occasionally ___ ？

答案解析

During the lecture, the speaker occasionally ___ h

答案解析

During the lecture, the speaker occasionally ___

答案解析

Ring groove inserts are occasionally used on aluminum alloy piston to_______.A.reduce the

答案解析

For occasional heavy loads, two cranes can be arranged to work togetherThe operating _____

答案解析

Water expands ______ freezing, as can be deduced from occasional breaks in water pipes in

答案解析