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华罗庚说：数缺形时少直观，形缺数时难入微。下列表达错误的是：（    ）

下列字义解释错误的一项是（     ）。

连一连。

阅读理解

    Do you know what couch potato means? Well, in America, the word is now often used. You see, in America, many people often spend their free time sitting on a sofa watching TV. As there are many channels(频道) to choose from, the TV can be quite interesting and very addictive(使人上瘾的). One may sit and watch TV for hours and hours without stop! Well, these people who do nothing all day except watching TV are called couch potatoes.

    In America, while watching TV, most people often sit still with eyes looking right into the TV set. Also because these people are addictive to TV, they don't take exercise and usually get very fat. So in many ways, these people look like real potatoes! Well, because they look fat, and watch TV on a couch, they are all called couch-potatoes. Now you know what a couch-potato means. Then next time if you see someone watching TV too long, just say, "What a couch-potato!"

y ____ _____ rs

如图所示，正方形导线框ABCD由左、右两部分组成， ， 分别是AD和BC边的中点。其右半部分可绕对称轴 转动，框的总电阻为R、边长为a。将框水平放置在匀强磁场中，磁场的磁感应强度大小为B，方向与AB边垂直并与线框平面成 角。现将线框右半边 以角速度 逆时针转动，当转动 时。求：

听录音，根据所听内容选择合适的答句（   ）

下列各项中的修辞手法表述有误的一项是（    ）

（1904～1997年），伟大的无产阶级革命家、政治家、军事家、外交家，中华人民共和国的主要领导人之一。结合所学知识回答问题。

—Have you ever worked as _________ volunteer during the COVID-19 pandemic?

—Yes, it was ________ unforgettable experience for me.

下列做法中，能保护土壤的是（   ）。

下列各组离子，能在溶液中大量共存的是（　　）

24的 是，的 是27。

 —Who's your music teacher, John?

—____

3头河马一天要吃360千克水草，动物园里养了8头河马，一天要给它们准备（    ）千克水草。

阅读理解

    One day, the teacher held up an apple in class, stood on the platform(讲台) and said, "Please smell the smell in the air!" One student raised his hand and answered, "I have smelled it. It is the smell of an apple."

    The teacher stepped off the platform, passed by each of the students and said," Please smell again to see if the smell of the apple is still in the air."

    Half of the students raised their hands to show that they could smell it. The teacher returned to the front of the classroom and asked again if the students could smell the apple. Everyone raised their hands except one student. The teacher came to the student and asked," You really can't smell the apple?"

    The student answered," No, I can't smell it. I don't think it's a real apple."

    The teacher smiled at the student and said to the class," He is right! This is not a real apple."

    All of the other students were tricked. They might have thought that perhaps the apple was not real, but they didn't have the self-confidence to speak up. They just "followed the leader" and went along with the first student.

    Please remember "Believe in yourself first, and then others will believe in you".

在如图所示的箱子里有一光滑斜面，通过水平细绳系住一质量分布均匀的小球。箱子水平向右匀速运动时细绳对球的拉力为 T，斜面对球的支持力为 N。当箱子水平向右作匀减速直线运动 （   ）

下列运算中，正确的是（　　）

一个三位数，百位是最小的合数，十位是最小的素数，且能被2和5整除，这个数是。

下图是A、B、C三种物质的溶解度曲线，下列说法错误的是（   ）