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【单选题】
下列哪个是人体细胞的基本物质，正确的是（ ）A.
糖类
B.
脂肪
C.
维生素
D.
蛋白质
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【简答题】根据句意和汉语提示,补全单词. 1. It is a fact that English is being (接受)as an international language. 2. People travel to meet new friends, to try new food, and to (体验)life in other parts of the world. 3. She found...
【简答题】在空格处填写黄色铰链四杆机构的各杆长度:机架( )、连杆( )、连架杆左()、连架杆右( )。
【简答题】根据句意及汉语提示，写出单词。 1. Di fferent kinds of _________ (税) are paid in the U.S. 2. Stealing things is a _________ (犯罪). 3. He lives in the _________ (郊区) of Beijin g and works in the city. 4. It's not my __...
【简答题】根据汉语提示写单词。 1. This is my __________(直尺)． 2.A _________ (电脑)is useful(有用的)． 3. -What's this _________ (用英语)? -It's a gold ring(金戒指)． 4. -Is ________ (那个)your backpack? -No, it isn't. 5.A set of ...
【单选题】The spaceman returned to Earth and safely landed in that area _____ the night of April 29. [ ]
A.
in
B.
on
C.
at
D.
by
【简答题】根据下面的英文提示，结合生活中的实例，谈谈你对失败的看法。 In fact ,there aren't always bright sunshine and gentle breeze, birds' singing and flowers fragrant in our daily life . We have so many failures and hardships that someon...
【简答题】球的体积公式是：球体体积= 4 3 π r 3 ．请用公式计算直径为2.45米的球的体积（用计算器计算，保留两个有效数字，π取3.14．）
【简答题】根据句意及首字母或汉语提示，填写句中所缺的单词。 1. There are __________________ (较少的) apples in this basket. I prefer that one. 2. Both of my best friends were born in ________________ (十月). 3. We are often told not to be _...
【简答题】根据汉语提示完成句子。（5分） 小题1:We take care of animals and plants. In fact we ________(保护) ourselves. 小题2:Please____ ____(查找) the words in the dictionary when you are in trouble. 小题3:Cows _______ __________(以…...
【简答题】根据提示填空: In fact, this book is a little _______________ (difficulty) for me to
understand.
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