Main bearings for medium speed engines currently in use are of the ____ type, Similar bearing shells are employed for bottom end bearings

单选题

Main bearings for medium speed engines currently in use are of the ____ type, Similar bearing shells are employed for bottom end bearings

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单选题

_____ me go. It is very important for me.

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填空题

Monica was urgent（ ）me for further particulars.with

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单选题

---The box is too heavy for me. Could you ______ me a favor? ---With pleasure.

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