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【单选题】
设 ,则 是                           (    )
A.
周期为 的奇函数
B.
周期为 的偶函数
C.
周期为 的奇函数
D.
周期为 的偶函数
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【简答题】1 They charged me too much money for that ring! 2 I slept too long and missed the fashion show this morning. 3 It’s difficult to emphasize too greatly the importance of the fashion industry to the eco...
【简答题】Part I Cloze Directions: Read the following text. Choose the best word (s) for each numbered blank. Teachers need to be aware of the emotional, intellectual, and physical changes that young s exp...
【单选题】I. Read the following statements and choose the correct answer.There is no denying that students should learn something about how computers work, just as we expect them at least to understand that the...
A.
to stress the impact of the computer on society
B.
to explain the concept of the computer literacy
C.
to illustrate the requirements for being competent citizens of tomorrow
D.
to emphasize that computer programming is an interesting and challenging job
【单选题】我国缓和曲线的类型采用( )。
A.
回旋线
B.
二次抛物线
C.
三次抛物线
D.
双扭线
【简答题】根据短文内容,从短文后的选项中选出能填入空白处的最佳选 项。选项中有两项是多余的。 In many countries, it is important to have many children .In the US, a few religious groups emphasize the importance of large families, but most people think ...
【单选题】I must ____ the fact that they are only children.
A.
enforce
B.
endure
C.
embrace
D.
emphasize
【单选题】在一种室内互动游戏中,魔术师要每位观众心里想一个三位数abc(a、b、c分别是百位、十位和个位数字),然后魔术师让观众心中记下acb、bac、bca、cab、cba五个数以及这5个数的和值。只要观众说出这个和是多少,则魔术师一定能猜出观众心里想的原数abc是多少。例如,观众甲说他计算的和值是1999,则魔术师立即说出他想的数是443,而观众乙说他计算的和值是1998,则魔术师说:“你算错了!”。提...
A.
第9行:  ret == -1 第18行: a=1 第24行: 122 * a +212 * b +221 * c 第25行: m == n
B.
第9行:  ret = -1 第18行: a=1 第24行: 122a +212b +221c 第25行: m = n
C.
第9行:  ret == -1 第18行: a=0 第24行: 122a +212b +221c 第25行: m == n
D.
第9行:  ret != -1 第18行: a=0 第24行: 122*a +212 * b +221 * c 第25行: m != n
【判断题】在磁路中,当电磁阻大小不变时,磁通与磁动势成反比。
A.
正确
B.
错误
【简答题】V、W、X、Y、Z五种短周期元素,原子序数依次增大,在周期表中,W、Z属同一主族;X分别与W、Y相邻;V与W,V与Z均可形成原子个数比为4:l的共价化合物.请回答下列问题: (1)下列比较不正确的是:______; A.原子半径:Z>W>X>Y>V; C.沸点:V 2 Y>XV 3 >WV 4 ; B.稳定性:WV 4 >ZV 4 ; D.熔点:WY 2 >ZY 2 ; (2)WX 一 与X 2 ...
【简答题】Read the following paragraphs and then answer four questions. (北外2011研) The idea behind the experiential vision of learning is that the use of the target language for communicative purposes is not onl...
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