在浓度为15%的20千克盐水中,加( )千克盐,能使盐水的浓度变为20%。
1.25
The reform project _______ by Mr. White ________ at the meeting now.
A.put forward; is discussed
B.has been put forward; is being discussed
C.is put forward; is discussed
D.put forward; is being discussing
()时,洗碗工负责将洗碗池内的污物杂质清除干净,放空蓄水,用浸过清洁剂的抹布内外擦拭一遍,然后用清水冲洗干净。