The iron and steel industry ______ an important part in our national economy.
A. plays
B. played
C. play
D. playing
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______ difficulties should be taken into account.
A. Some these
B. All such
C. These all
D. Such all
The rising crime rate is ______ major concern of ______ society.
A. the, the
B. a, /
C. a, the
D. /, the
Which of the italicized parts functions as an object
A. He doesn"t like the ideaof my speaking at the meeting.
B. It is no useyour pretending not to know the matter.
C. Herfalling into the riverwas the climax of the whole trip.
D. My parents strongly object tomy going out alone at night.
被覆黏膜不包括
A. 唇黏膜
B. 颊黏膜
C. 口底黏膜
D. 舌腹黏膜
E. 舌背黏膜
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