單項(xiàng)選擇題We had to learn chemical()at school but I can only remember H2O for water.

A.principles
B.prescriptions
C.formula
D.formulae


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1.單項(xiàng)選擇題At the restaurant, the only()to chicken was beef.

A.choice
B.option
C.selection
D.alternative

2.單項(xiàng)選擇題After retiring, he()his hobby of stamp collecting.

A.pursued
B.pursuit
C.followed
D.chased

3.單項(xiàng)選擇題The company has()some major changes in the last five years.

A.stood
B.suffered
C.undergone
D.tolerated

4.單項(xiàng)選擇題It was difficult to()how many trees had been destroyed.

A.measure
B.test
C.estimate
D.evaluate

5.單項(xiàng)選擇題The question of salary increases is high on the()

A.agenda
B.procedure
C.schedule
D.budget