方程4x﹣1=3的解是[ ]
A.x=﹣1
B.x=1
C.x=﹣2
D.x=2
答案:B
Generally speaking, _____according to the directions, the drug has no side-effect. [ ]
A when taking
B when taken
C when to take
D when to be taken
治疗淋病的首选药物是
A.头孢曲松
B.青霉素钠盐
C.红霉素
D.克林霉素
E.多西环素(强力霉素)