人体血液循环中，运输氧的血细胞是____ 

以下各条线大致与秦岭---淮河一线一致的有（    ）

①湿润地区与半湿润地区的分界线   ②亚热带与暖温带的分界线

③1000mm等降水量线  ④一月份0℃等温线⑤半湿润地区与半干旱地区的分界线

阅读短文，判断正误。
Dear Joe,
    How are you? My sister and I are having our holiday. Yesterday we went to the library. We got there by bus. We read storybooks and had lunch there. The food was delicious. It was cheap, too. We went shopping in the afternoon. I bought a pair of shoes. I was very tired. We are planning to learn skating and do many other things during the holiday. We are sure we'll have a good time.
    How about your holiday? Please write to me soon.
Miss you.
Alice

从正面、左面、上面观察如图所示的几何体，分别画出你所看到的几何体的形状图．

把一个“36V  40W”的灯泡接入某电路时，测得通过它的电流为1A，则此灯泡的实际功率为  （    ）