A block and tackle is rove to advantage. This means that the ______. A. blocks have been overhauled B. hauling parts of two tackles are attached C. hauling part leads through the movable block D. hauling part leads through the standing block
【简答题】英文释义(连线)。 ( )1. agers ( )2. part-time ( )3. concentrate ( )4. at present ( )5. get to a. fix one's attention on something b. for only a part of the working day or week c. kids ...