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Gaokao Math Practice Question

5. (5 分) 已知命题 $p_{1}$ : 函数 $y=2^{x}-2^{-x}$ 在 $R$ 为增函数, $p_{2}$ : 函数 $y=2^{x}+2^{-x}$ 在 $R$ 为减函数, 则在命题 $q_{1}: p_{1} \vee p_{2}, q_{2}: p_{1} \wedge p_{2}, q_{3}:\left(\neg p_{1}\right) \vee p_{2}$ 和 $q_{4}: p_{1} \wedge(\square$ $\left.p_{2}\right)$ 中,真命题是( $)$

  1. A.$q_{1}, q_{3}$
  2. B.$q_{2}, q_{3}$
  3. C.$q_{1}, q_{4}$
  4. D.$q_{2}, q_{4}$

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