一级水准测量的视线长度符合JGJ8-2007规定的是（）m。
A.20
B.40
C.60
D.80
参考答案：A
属于广谱抗癫痫药的药物是（）
A.卡马西平
B.苯巴比妥
C.丙戊酸钠
D.戊巴比妥
E.乙琥胺
When it ______ research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
A．refers to
B．related to
C．comes to
D．talks to
