某股上升行情中，当K线和D线上升或下跌的速度减弱，出现屈曲，这种情况表示股价____

In _______ 1960s, ________ number of habitants here is very _______ ,and it was since the middle of 1970s that the population has been increasing rapidly.

A．不填; the; much

B．the; the; small

C．不填; the; large

D．the; a; small

解方程．

5x+5.5=7

6×4-0.5x=12.8

15×（x+0.6）=18

5.9x-2.4x=7．

Ascoli试验辅助诊断炭疽芽孢杆菌感染，诊断血清针对的抗原是 （）

A.菌体多糖抗原

B.荚膜多肽抗原

C.芽胞抗原

D.表面抗原

E.以上都不是

9只兔子装入4个笼子，有一个笼子至少装______只．

具有清热、止痛作用的药物是

A．冰片
B．苏合香
C．麝香
D．僵蚕
E．地龙