华南浅海区三叠系以黔南贞丰剖面发育最好,该剖面中三叠统包括关岭组、()。
参考答案:法郎组
A.Lowering the prices of their newspapers.
B.Shortening their news stories.
C.Adding variety news stories.
D.Increasing more advertisements in their newspapers.
施行心脏复苏术时,病人体位错误的是()。
A.病人仰卧于硬板床或地面上
B.头部与心脏在同一水平
C.应抬高下肢,以增加回心血量。
D.只要操作者方便就行