准确量取25.00毫升高锰酸钾溶液,可选用的仪器是[ ]
A.50mL量筒
B.10mL量筒
C.50mL酸式滴定管
D.50mL碱式滴定管
答案:C
素体津亏血耗者,易致邪从()。
A.寒化
B.实化
C.虚化
D.湿化
E.燥化
.—We’ll eat as soon as the meat is done.
—It has__________to cook for another five minutes.
A.still
B.yet
C.already
D.may