—It's seven o'clock. It's time to go _______.
—OK, let's go.
A:the school
B:to school
C:my school
下列关于生物进化总趋势的叙述,不合理的是( )
下列属于植物二糖的是 ( )
The library is next to Classroom 2.
张阿姨洗衣服,已知以下信息:①洗衣机的洗衣缸内可容纳洗衣水(洗衣水指水与洗衣粉的混合液)和衣服共20千克;②洗衣缸内已有衣服5千克,洁净牌洗衣粉两匙;③每匙洗衣粉约0.02千克;④每千克洗衣水中含有4克洁净牌洗衣粉洗衣效果最好。问:要使洗衣水效果恰好,张阿姨还需往洗衣缸内加多少洗衣粉,添多少水?