会员制期货交易所的权力机构是理事会。()
参考答案:错
结核分枝杆菌经抗酸染色后呈红色是因为 ()
A.所用的石炭酸浓度过高,不易被脱色
B.盐酸酒精不易使之脱色
C.脱色所用盐酸酒精为酸性,不易使结核分枝杆菌脱色
D.亚甲蓝不能用于细菌染色
E.结核分枝杆菌细胞壁含糖多,不易被酒精脱色
The purchaser of this lorry is protected by the manufacturer’s warranty that he will replace any defective part for five years or 50,000 miles.
A. prohibition B. insurance C. prophecy D. guarantee