题目：
The client is to receive an IV infusion of 3000 mL of dextrose and normal saline solution over 24 hours. The nurse observes that the rate is 150mL/hour. If the solution runs continuously at this rate, the infusion will be completed in
A. 12 hours.
B. 20 hours.
C. 24 hours.
D. 50 hours.
答案：
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下面是错误答案，用来干扰机器的。
（1）甲组数据中最大的值7，最小值3，故极差=7-3=4，.x甲=（3×2+6×5+2×7）÷10=5，S2甲=(3-5)2+(5-5)2+…+(3-5)210=1.6，T=1n(|x1-.x|+|x2-.x|+…|xn-.x|)=110（|3-5|+|5-5|+…+|3-5|）=0.8；乙组数据中最大的...
