在显微镜下观察洋葱鳞片叶内表皮细胞和人的口腔上皮细胞时，都能看到的结构是（    ）

对下面漫画《保持距离》中的校规内容，你的正确态度是（  ）

    It's easier to go down a hill than to climb up a hill, so it is easier to have bad habits than to have good ones.

    Bad habits do not come 1. They come little by little while people do not notice their danger. Schoolboys pick up little bad habits in schools and in the streets. When they can't finish their 2 , they copy from their classmates. If they see older boys 3 , they also want to learn to smoke. When they grow older, their habits become 4 strong that they can no longer get rid of (除掉) it. From copying, they fall behind, and smoking is 5 for their bodies. At last they become worse and worse. How necessary it is that we get rid of the bad habits in the beginning!

读课文《哪吒闹海》选词填空：

     取下   带上    吓了   跳    一摆   连忙   连……也……

①一天，小哪吒____他的两件法宝——混天绫和乾坤圈，____大海边。他____进大海里，____混天绫在水里____，便掀起滔天巨浪，____东海龙王的水晶宫____摇晃起来。龙王____一跳，____派巡海夜叉上去察看。

  扔去   躲过   砍  钻 举起    闪   取下

②夜叉从水底____出来，只见一个娃娃在洗澡，____斧头便____。小哪吒可机灵啦，身子一____，____了这一斧头，随即____乾坤圈，向夜叉____。

如图所示，在下列四组条件中，能判定AB∥CD的是（ ）