放暑假了，九年级的小李同学准备骑自行车去外婆家度假。小李在骑

搜题请搜索小程序“爱下问搜题”

问题选择题

放暑假了，九年级的小李同学准备骑自行车去外婆家度假。小李在骑自行车的过程中，不应当 [ ]

A．在非机动车道上靠右边行驶

B．载着表妹一同去看望外婆

C．经过交叉路口时，减速慢行

D．听到手机响，靠边停车再接听

答案

答案：B

阅读理解

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.

根据短文内容，选择正确答案。

小题1:Lucy and Lily are _______ years old.

A. 8 B. 9 C. 10

小题2:Mrs. White is Bob’s ________.

A. mom B. teacher C. friend

小题3: Bob wears ________.

A. black shoes B. a blue cap C. a brown coat

小题4: The girls’ eyes are __________.

A. black B. blue C. brown

小题5:Which is TRUE?(哪一项是正确的)

A. Lucy and Lily are in a brown car.

B. The girl in an orange skirt is Lily.

C. Mrs. White’s dress is black.

查看答案

解答题

某项实验，在100次实验中，成功率只有10%，进行技术改革后，又进行了100次试验．若要有97.5%以上的把握认为“技术改革效果明显”，实验的成功率最小应为多少？（要求：作出2×2列联表）（设P（x²≥5）=0.025）

查看答案