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【简答题】
We go shopping on Sunday. I often go to the supermarket with my mother on Sunday morning. Father likes fruit very much. We buy some bananas for him. Mother likes red apples, but the apples in thesupermarket are green. We don't buy them. The strawberries are very nice.Mother likes them very much and buys some for herself. The oranges are very nice, too. Mother buys some for me. I like ranges very much. We need some vegetables. The vegetables in the supermarket are very good. We buy some broccoli. I don't like broccoli, but my parents like it. I like carrots very much. We buy lots of carrots. After shopping, mother and I have some salad, French fries and icecream. Then we go back home with the fruit and vegetables.
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参考答案:
举一反三
【单选题】漏电保护装置安装完毕后,在接通电源无负荷的条件下,用试验按钮试验()次,动作应正确。
A.
5次
B.
3次
C.
2次
D.
1次
【多选题】由于通过线圈本身的电流发生变化而产生感应电动势的现象叫做____现象,简称____。
A.
自感应
B.
自感
C.
互感
【简答题】试证明: 设f n ∈C (1) ((a,b))(n=1,2,…),且有 , ,  x∈(a,b). 若存在f'(x),F(x)在(a,b)上连续,则f'(x)=F(x),x∈(a,b).
【简答题】由于通过线圈本身的电流发生变化而产生感应电动势的现象叫做____现象,简称____。
【单选题】能止咳平喘,且为润肠通便重要药物的是
A.
苦杏仁
B.
桃仁
C.
款冬花
D.
紫菀
E.
紫苏子
【单选题】设f(x)连续,且f'(0)>0,则存在δ>0,使得(    ).
A.
f(x)在(0,δ内单增.
B.
f(x)在(-δ,0)内单减.
C.
对 有f(x)>f(0).
D.
对 有f(x)>f(0).
【简答题】设f'(x)在[a,b]上连续,且f'(a)>0,f'(b)<0,则下列结论中不正确的是______ (A)至少存在一点x 0 ∈(a,b),使得f(x 0 )>f(a) (B)至少存在一点x 0 ∈(a,b),使得f(x 0 )>f(b) (C)至少存在一点x 0 ∈(a,b),使得f'(x 0 )=0 (D)至少存在一点x 0 ∈(a,b),使得f(x 0 )=0
【单选题】设函数f(x)连续,且f'(0)>0,则存在ξ>0,使得( )
A.
f(x)在(0,ξ)内单调增加
B.
f(x)在(-ξ,0)内单调减少
C.
对于任意的x∈(0,ξ),有f(x)>f(0)
D.
对于任意的x∈(-ξ,0),有f(x)>f(0)
【判断题】由于线圈本身所通过的电流发生变化而产生感应电动势的现象叫自感现象。
A.
正确
B.
错误
【单选题】设函数f'(x)在[a,b]上连续,且f'(a)>0,f'(b)<0,则下列结论中错误的是( )
A.
至少存在一点x0∈(a,b),使得f(x0)>f(a)
B.
至少存在一点x0∈(a,b),使得f(x0)>f(b)
C.
至少存在一点x0∈(a,b),使得f'(x0)=0
D.
至少存在一点x0∈(a,b),使得f(x0)=0
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