下列说法正确的是（　　）

家庭电路中常用带有开关的移动插座，插座上的开关与插座是 ____联，插座与插座之间是 ____

已知一辆轿车在启动的一段时间内，速度v（m/s）与时间t（s）满足v（t）=t²+2t+3，则当t=1s时的瞬时加速度为____ m/s．

地球仪上，经度是西经，却在东半球范围的是（　　）

根据短文内容，选择正确答案。  

    Here is a photo. The two girls have big blue eyes and long brown hair. They are both ten years old. They are in the same class. The one in a yellow skirt is Lily. The other one (另一个) an orange skirt is Lucy. Their father (父亲) is Mr. White. He is in a brown coat. Their mom is Mrs. White. She is in a black dress. Who is that boy in a blue cap? He is Lucy and Lily's brother(哥哥), Bob. He is a high school student. Look! Lucy and Lily are in a green car.