For an ordinary modem marine four－stroke engine the inlet valves close _____.A.after TDCB.

Some would consider such speech an infringement of good mariners whereas others would not.

Last year, my classmate Jane and I graduated from an ordinary normal university. Like most

A．For a marine exhibition.B．For a marine biology class.C．For a scuba diving class.D．Fo

The majority of medium speed and high speed marine diesel engines for main or auxiliary dr

When an ordinary computer mouse gets dirty it has

Well be surprised to see others ______.A.in an ordinary mirrorB.in a True MirrorC.in pers