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【单选题】
下列点子排列状况反映过程处于控制状态的是A.
控制图中有点子超出上控制界限
B.
控制图中有点子落在控制界限上
C.
控制图中无点子超出控制界限，且控制界限内的点子随机排列
D.
控制界限内的点子有9点落在中心线同一侧
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【简答题】某烧碱溶液中含有少量杂质(不与盐酸反应)，现用中和滴定测定其浓度。 （1）滴定：①用 式滴定管盛装c mol/L盐酸标准液。如图表示某次滴定时50 mL滴定管中前后液面的位置。请将用去的标准盐酸的体积填入③表空格中，此时滴定管中液体的体积 mL。 ②下表是4种常见指示剂的变色范围： 指示剂 石蕊 甲基橙 甲基红 酚酞 变色范围（pH） 5．0—8．0 3．1—4．4 4．4—6．2 8．2—10．...
【单选题】The paradox is that every day we get two sets of messages at odds with each other.
A.
The contradiction is that every day we get two sets of messages disagreeing with each other.
B.
The contradiction is that every day we get two sets of strange and unusual messages.
C.
The condition is that every day we get two sets of messages echoing each other.
【单选题】We may infer that the fastest way for the computer to send messages to others is by using ______.
A.
paper
B.
discs
C.
the Internet
D.
air mail
【单选题】The paradox is that every day we get two sets of messages at odds with each other.
A.
The contradiction is that every day we get two sets of messages disagreeing with each other.
B.
The contradiction is that every day we get two sets of strange and unusual messages.
C.
The condition is that every day we get two sets of messages echo each other.
【简答题】以下零件是用 材料制成?请解释其材料的牌号含义:该材料平均含 量(中文表元素名称)为 % 。
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