單項(xiàng)選擇題If you()bright sunlight()dry wood with a glass, it will start burning.

A.expose;to
B.concentrate;on
C.aim;at
D.focus;on


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1.單項(xiàng)選擇題When he was a young boy, a serious disease deprived him of the()of hearing.

A.organ
B.possession
C.conduct
D.faculty

2.單項(xiàng)選擇題Stamping on any country's national flag is an()to its people.

A.inflation
B.ingredient
C.insult
D.invasion

3.單項(xiàng)選擇題I am afraid that you have to alter your()views in light of the tragic news that has just arrived.

A.indifferent
B.distressing
C.optimistic
D.pessimistic

5.單項(xiàng)選擇題Shaking hands when people meet each other for the first time is practiced as a()way of greeting.

A.conventional
B.conservative
C.constant
D.convenient