What should Americans not forget
A. To vote for Kennedy.
B. To pay taxes.
C. What their ancestors created.
D. What they possesse
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What weather conditions are predicted during the night and morning hours
A. Heavy fog.
B. Periodic sleet.
C. Strong winds.
D. Heavy snow.
They won't get there______ next Tuesday.
A. on
B. until
C. since
D. in
Vegetables sold at this shop ______usually fresh and cheap.
A. is
B. are
C. do
D. does
开放性气胸首要处理原则是( )
A. 胸膜穿刺
B. 清创
C. 预防性应用抗生素
D. 紧急封闭伤
E. 胸腔闭式引流