蝇类幼虫无前气门,后气门1裂为()
A.Ⅲ龄幼虫
B.Ⅱ龄幼虫
C.Ⅰ龄幼虫
D.Ⅳ龄幼虫
参考答案:C
Tom was deeply ______ by the story of the hero. Which of the following is NO Tright? [ ]
A. impressed
B. moved
C. pressed
D. struck
下图中a、b为两条纬线,纬度由b向a逐渐增高,c为经线,d为晨昏线与c的交点。若d的地方时为16时。下列说法正确的是()
A.地球运行到远日点附近
B.北京的昼长较广州短
C.北印度洋海水呈顺时针方向流动
D.塔里木河处于丰水季节