單項(xiàng)選擇題

Let H （） the quantity of heat which has been converted into mechanical work.

A.represent
B.represents
C.representing
D.being represented

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單項(xiàng)選擇題

The chief engineer suggests that the second engineer （） a dead line for handing in the work plan.

A.will set
B.shall set
C.set
D.sets

單項(xiàng)選擇題

After he （） the test, the engineer put down the results.

A.has finished
B.finishes
C.had finished
D.would finish

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