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【单选题】
两点的相对位置指两点在空间的上下、前后、左右位置关系,z坐标越大,越靠()。
A.
上
B.
前
C.
下
D.
右
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【单选题】对于小型开关量 PLC梯形图程序,一般只有( )
A.
（ A）初始化程序
B.
（ B）子程序
C.
（ C）中断程序
D.
（ D）主程序
查看完整题目与答案
【简答题】A．His physical appearance and his action. B．His way of speaking and behaving. C．His learning and behaviour. D．His way of acting and thinking.
查看完整题目与答案
【单选题】采用双相滴定法测定苯甲酸钠含量时,加入乙醚的目的是
A.
防止反应产物的干扰
B.
乙醚层在水上面，防止样品被氧化
C.
消除酸碱性杂质的干扰
D.
防止样品水解
E.
以上都不对
查看完整题目与答案
【单选题】食品检测和微生物学实验室中最常用的一种湿热灭菌法是（），它适用于各种耐高温而又不怕蒸汽的物品灭菌。
A.
流通蒸汽消毒法
B.
间歇灭菌法
C.
高压蒸汽灭菌法
D.
煮沸消毒法
查看完整题目与答案
【简答题】假如有一邻苯二甲酸氢钾试样，其中邻苯二甲酸氢钾含量约90%，余为不与碱作用的杂质，今用酸碱滴定法测定其含量。若采用浓度为1.000mol/L NaOH标准溶液滴定，与控制滴定时碱溶液体积在25mL左右通过上述的计算结果，说明为什么在滴定分析中通常采用的滴定剂浓度为0.1~0.2mol/L。
查看完整题目与答案
【单选题】My uncle went to see me off. [     ]
A.
in his way
B.
on his way
C.
by the way
D.
out of his way
查看完整题目与答案
【简答题】A．His physical appearance and his action. B．His way of speaking and behaving. C．His learning and behavior. D．His way of acting and thinking.
查看完整题目与答案
【单选题】下列病原体中,可导致沙眼的是
A.
沙眼支原体
B.
沙眼衣原体
C.
脲解支原体
D.
变形杆菌
查看完整题目与答案
【单选题】He must be _________ home now.
A.
on his way to
B.
on his way
C.
in his ways to the
D.
in his way
查看完整题目与答案
【单选题】In addition to his intelligence, he works very hard, so he is well ____________ to becoming a fine mechanic. A. in the way B. on his way C. at the way D. by the way
A.
in the way
B.
on his way
C.
at the way
D.
by the way
查看完整题目与答案
相关题目：
【单选题】对于小型开关量 PLC梯形图程序,一般只有( )
A.
（ A）初始化程序
B.
（ B）子程序
C.
（ C）中断程序
D.
（ D）主程序
查看完整题目与答案
【简答题】A．His physical appearance and his action. B．His way of speaking and behaving. C．His learning and behaviour. D．His way of acting and thinking.
查看完整题目与答案
【单选题】采用双相滴定法测定苯甲酸钠含量时,加入乙醚的目的是
A.
防止反应产物的干扰
B.
乙醚层在水上面，防止样品被氧化
C.
消除酸碱性杂质的干扰
D.
防止样品水解
E.
以上都不对
查看完整题目与答案
【单选题】食品检测和微生物学实验室中最常用的一种湿热灭菌法是（），它适用于各种耐高温而又不怕蒸汽的物品灭菌。
A.
流通蒸汽消毒法
B.
间歇灭菌法
C.
高压蒸汽灭菌法
D.
煮沸消毒法
查看完整题目与答案
【简答题】假如有一邻苯二甲酸氢钾试样，其中邻苯二甲酸氢钾含量约90%，余为不与碱作用的杂质，今用酸碱滴定法测定其含量。若采用浓度为1.000mol/L NaOH标准溶液滴定，与控制滴定时碱溶液体积在25mL左右通过上述的计算结果，说明为什么在滴定分析中通常采用的滴定剂浓度为0.1~0.2mol/L。
查看完整题目与答案
【单选题】My uncle went to see me off. [     ]
A.
in his way
B.
on his way
C.
by the way
D.
out of his way
查看完整题目与答案
【简答题】A．His physical appearance and his action. B．His way of speaking and behaving. C．His learning and behavior. D．His way of acting and thinking.
查看完整题目与答案
【单选题】下列病原体中,可导致沙眼的是
A.
沙眼支原体
B.
沙眼衣原体
C.
脲解支原体
D.
变形杆菌
查看完整题目与答案
【单选题】He must be _________ home now.
A.
on his way to
B.
on his way
C.
in his ways to the
D.
in his way
查看完整题目与答案
【单选题】In addition to his intelligence, he works very hard, so he is well ____________ to becoming a fine mechanic. A. in the way B. on his way C. at the way D. by the way
A.
in the way
B.
on his way
C.
at the way
D.
by the way
查看完整题目与答案