植物养分比例 plant nutrients ration

feed conversion ration，FCR（饲料转化率）

The advantage of rail transport is （）

A:Great amount of shipped B:Less damage ration C:Fast speed, exact schedule, and cost saved D:Direct shipping line

Loss and damage ration for motor are lower than any other modes. Is it correct?（）

A:Yes B:Depend C:Not D:I don’t know

Loss and damage ration for motor are lower than any other modes. Is it correct?（）

A:Yes B:Depend C:No D:I don’t know

BSC释放无线口逻辑信道和物理信道完成的标志是向MSC回（）信令.

A:Release Complete B:Clear Complete C:RLSD Complete D:Disconnect

The mariner must be the final judge of the reliance he can place on the information given in the Admiralty charts and other publications, shice they ______．

A:may always be complete and up-to-date B:may not always be complete and up-to-date C:may sometimes be complete and up-to-date D:may not sometimes be complete and up-to-date"

Jane ________ the book and she knew the ________ event.

A: completed；complete B: complete；complete C: finishes；complete D: finished；completed

Her work ________often ________on timE.

A:will；complete B:is；going to complete C:is；completed D:are；going to be completed

With several exams _______ , most students feel worrieD.

A:to complete B:completing C: completed D:complete