一天24小时中,时钟的分针和时针共组合成______次平角,______次周角.
一天24小时中,时钟的分针和时针共组合成24次平角,24次周角.
填空。
1. Han Mei enjoys ____ (sing) in English.
2. Let me help you ____ (find) them.
3. ____ (swim) is the best sport in summer.
4. Are you ____ (go) ____ (hike) this Sunday?
5. We decided ____ (go) for a field trip with some friends of ours.
一个圆柱的侧面展开是一个正方形,则这个圆柱的高与底面周长的比是1:1.______.(判断对错)