下列哪种药物增强心肌收缩力并选择性扩张内脏血管()
A.苄胺唑啉
B.间羟胺
C.多巴胺
D.硝普钠
E.硝酸甘油
参考答案:C
—How do you like TV shows Home with kids (家有儿女)?
—I think _______ you turn it on, you'll never be able to turn the TV off. [ ]
A. if
B. because
C. although
D. as
下面关于整体路面特点表述正确的是()。
A、现浇水泥混凝土路面和沥青混凝土路面
B、各种碎石、瓦片、卵石等组成的路面
C、平整、耐压、耐磨
D、适于广场、游步道和通行轻型车辆的地段