在海上救助中,救助人指挥救助作业的救助应包括()。①纯救助;②雇佣合同救助;③无效果无报酬合同救助。
A.①-③
B.①②
C.①③
D.③
参考答案:C
Zhang Yining has trained continuously for six hours. ______ she is tired out.
A.There is no wonder
B.There is no need
C.It’s no wonder
D.It’s no doubt
检查脑脊液中新型隐球菌,离心沉淀物中需加入少量()
A.革兰染液
B.亚甲蓝染液
C.稀乙酸
D.碘液
E.墨汁