皮皮学,免费搜题
登录
搜题
【简答题】
The students are having their chemistry(化学)class. Miss Li is telling the children what water is like. After that, she asks her students some questions, and one of them is, “Boys and girls! What is water? Can you tell me?” She waits for a few minutes, but no one answers her. Then Miss Li asks again. “Why don’t you answer my question? I tell you what water is like , right?” Then a boy puts up his hand and says, “Miss Li, you tell us that water has no color and no smell(味道). But I think that water is something that is black when I wash my hand in it.” All the students begin to laugh(笑). Miss Li laughs too. Then another boy puts up his hand, Miss Li says “What do you think, Wang Bing?” The boy says:” Miss Li, where can we find water that has no color and no smell?” “Why do you say so?” Miss Li asks. “The water in the river behind my house is always black and it has a bad smell.” Answers the boy. And most of the children think he is right. “I am sorry to hear that, children.” says the teacher. “Our water is getting dirtier(脏). That is a problem. All of us must try our best (尽力) to make it clean again.” 小题1:Which of the following is right? A.Miss Li is giving the students a math lesson. B.Miss Li tells the students something about water. C.Miss Li doesn’t tell the students what water is like. D.All the students don’t know what water is like. 小题2:Miss Li tells the children _________. A.water is clean. B.water has color C.water has smell D.water has no smell or color 小题3:All the students and Miss Li laugh because________ A.the boy gives an interesting answer B.the boy gives a wrong answer C.the boy doesn’t listen to the teacher carefully D.the boy likes drinking water 小题4:In the text ______ answer Miss Li’s question. A.two boys B.two girls C.a boy and a girl D.no students 小题5:The teacher thinks_______. A.the second boy is wrong B.the water in the rivers is always clean C.the water in the rivers is always dirty D.all of them must try their best to make water clean
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【简答题】一个篮球的体积为 9850 厘米³,求该篮球的半径 r (球的体积 V=4 π r 2 /3 ,π取 3.14 ,结果精确 到 0.1 厘米)。
【单选题】鞘翅目昆虫前足的基节窝的后方,前胸腹板与前胸侧板相遇者,称为 。
A.
开放式
B.
封闭式
C.
连续式
D.
间断式
【单选题】对于内力影响线中的移动荷载,下面表述正确的是( )
A.
大小、方向、作用点位置均不变
B.
方向、作用点位置改变,仅大小不变
C.
大小、方向不变,仅作用点位置改变
【简答题】细菌在固体培养基中生长可形成 和 等现象。
【单选题】学生a说,机油粘温性是指机油粘度随温度而变化的特性。学生b说,机油粘度随温度变化越小越好。他们说法正确的是()
A.
只有学生a正确
B.
只有学生b正确
C.
学生a和b都正确
D.
学生a和b都不正确
【简答题】一个篮球的体积是3930πcm 3 ,求该篮球的半径r.(球的体积V= 4 3 π r 3 ,精确到1cm.)
【单选题】学生a说:机油粘温性是指机油粘度随温度而变化的特性;学生b说:机油粘温性越小越好。他们说法应该是
A.
只有a学生正确
B.
只有b学生正确
C.
学生a和b都正确
D.
学生a和b都不正确
【简答题】细菌在固体培养基中生长可形成 和 两种生长现象。
【单选题】将半径为R的球体加热,如果球半径增加△R,则球体积的增量△V≈
A.
4πR△R
B.
4π △R
C.
D.
π
【多选题】对液体制剂的质量要求描述正确的是( )。
A.
均匀相液体制剂应是澄明溶液,非均匀相液体制剂的药物粒子应分散均匀
B.
口服液体制剂外观良好、口感适宜,外用液体制剂应无刺激性
C.
液体制剂在保存和使用过程不应发生霉变
D.
包装容器适宜,方便患者携带和使用
E.
分散离子具有很大的比表面积,易产生一系列的物理稳定性问题
相关题目: