• 2022-06-08
    How many employees will be hired
    A: Less than 100
    B: Over 100
    C: Over 500
    D: Over 1,000
  • D

    内容

    • 0

      How many planes does China expect to sell to Chinese customers over the next 20 years() A: 300 B: 100 C: 71 D: 64

    • 1

      How many people became homeless as a result of the storm A: Over two hundred. B: Over fourteen. C: About fifteen.

    • 2

      1.How many McDonald’s restaurants are there in the world? A: Over 30,000 B: Over 13,000 C: Over 3000 D: Over 1300

    • 3

      求函数$y = {{1 + \root 3 \of {{x^2}} - \sqrt {2x} } \over {\sqrt x }}$的导数$y' = $( ) A: $ {1 \over 2}{x^{ - {3 \over 2}}} + {1 \over 6}{x^{ - {5 \over 6}}}$ B: $ - {1 \over 2}{x^{ - {3 \over 2}}} + {1 \over 6}{x^{ - {5 \over 6}}}$ C: ${1 \over 2}{x^{ - {3 \over 2}}} - {1 \over 6}{x^{ - {5 \over 6}}}$ D: ${1 \over 3}{x^{ - {3 \over 2}}} - {1 \over 6}{x^{ - {5 \over 6}}}$

    • 4

      函数\(y = \sin {1 \over x}\)的导数为( ). A: \({1 \over { { x^2}}}\sin {1 \over x}\) B: \( - {1 \over { { x^2}}}\sin {1 \over x}\) C: \( - {1 \over { { x^2}}}\cos {1 \over x}\) D: \({1 \over { { x^2}}}\cos {1 \over x}\)