苯妥英钠为()
A.白色粉末,微有引湿性
B.油状液体有轻微特臭,有引湿性
C.具旋光性白色结晶性粉末
D.油状液体有特异臭
E.加稀盐酸溶解后,滴加氯水显缨红色
参考答案:A
苯妥英钠为()
A.白色粉末,微有引湿性
B.油状液体有轻微特臭,有引湿性
C.具旋光性白色结晶性粉末
D.油状液体有特异臭
E.加稀盐酸溶解后,滴加氯水显缨红色
参考答案:A
完形填空。 | |||
It was a cold winter afternoon. Robert stopped for a moment as he crossed the bridge and looked | |||
( )1.A. fish ( )2.A. there ( )3.A. more ( )4.A. happened ( )5.A. on ( )6.A. swimmer ( )7.A. threw ( )8.A. deep ( )9.A. but ( )10.A. pushing ( )11.A. place ( )12.A. seeing ( )13.A. decided ( )14.A. while ( )15.A. turned ( )16.A. nervous ( )17.A. wrapped ( )18.A. save ( )19.A. on ( )20 A. boat | B. boats B. it B. many B. went B. within B. guard B. looked B. cool B. so B. dragging B. period B. smiling B. went B. till B. looked B. afraid B. left B. thank B. out B. blanket | C. waves C. where C. much C. arrived C. in C. soldier C. jumped C. dirty C. and C. holding C. second C. looking C. agreed C. for C. hurried C. excited C. placed C. wrap C. away C. camera | D. birds D. that D. little D. came D. under D. player D. turned D. cold D. or D. catching D. moment D. shouting D. promised D. as D. stood D. angry D. threw D. help D. off D. screen |