A:把10%的NaCl溶液换成30%的NaCl溶液
B:把10%的NaCl溶液装在漏斗里,清水装在烧杯中
C:把鸡蛋膜换成其它半透膜
D:把10%的NaCl溶液换成30%的蔗糖溶液
根据短文内容及所给首字母,将正确的单词写在答题卷上 James works in a food shop. He helps the shopkeeper. He puts f____ on the shelves every day. Then people come into the shop and buy the food. Today there aren’t any bags of flour(面粉) on the shelf.“James,” says the shopkeeper. “We n____ some flour. Bring some bags of flour to the shelf. Hurry up!” James runs to get some bags of flour. They are in another room and they are on the top shelf. The shelf is high up. James is tall b____ he can’t reach the bags. James bring two boxes and puts one b____ on the other. Then he stands on them. Now he c____ reach(够到) the bags on the shelf.
乞拉朋齐地处亚洲,是世界上著名的雨极,平均年降水量11500毫米.该地降水类型多与下图所示的( )相符.
如图所示几何体的俯视图是( )