How many 4-digit numbers begin with an odd digit and end with an even digit ?


If the sum of four consecutive even integers is 340,then the average of the two larger integers is


The odds that a certain event will occur is the ratio of the probability that the event will occur to the probability that it will n...


If x + 2y = 2 and (x+y)^2 =9,which of the following is a possible value of y ?


In what month was gas use in one of the years nearly double that for the same month in the other year ?


If N is an integer and 99<N^2<200,then N could have at most how many values?


If one number is chosen at random from the first 1,000 positive integers,what is the probability that the number chosen is a multipl...


A certain doctor suggests that an individuall's daily water intake be 1/2 ounce per pound of body weight plus 8 ounces for every 25 ...


For how many of the countries shown was the savings rate more than 5 times the real GNP growth rate ?




  • QR-数学41%人做对

    The number of primes that are divisible by 9The number of primes that are ...

  • RC-阅读41%人做对

    The passage supplies information for answering which of the following questions?

  • RC-阅读45%人做对

    According to the passage, the musical contributions of Polish women have been neglected...

  • RC-阅读63%人做对

    The passage provides information in support of which of the following assertions EXCEPT?

  • RC-阅读0%人做对

    According to the neo-Whig scholars as described in the passage, they believe in which o...

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