杜甫诗歌的主体风格是 ( )。
A.沉郁顿挫
B.婉而多讽
C.悲凉慷慨
D.质朴刚健
参考答案:A
But for electricity, human life _____ so easy today.
A.isn’t
B.would not be
C.will not be
D.would not have been
既能收敛止血,又能凉血止血的药物是
A.仙鹤草B.紫珠C.血余炭D.棕榈炭