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【单选题】
下列叙述不正确的是A.
NaCl的摩尔质量是58.5g/mol
B.
将 w g a％的NaCl溶液蒸发掉 g水，得到2a％的NaCl溶液
C.
将1体积 c mol/L的硫酸用水稀释为5体积，稀溶液的浓度为0.2 c mol/L
D.
将5.85gNaCl晶体溶入1000mL水中，制得0.1mol/L的NaCl溶液
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举一反三
【判断题】双目视觉三维测量系统是模仿人眼视觉设计的,已知两摄像机的相对位置关系,便可以测量两摄像机公共视场内物体特征点的三维坐标。但人眼优于 双目视觉三维测量系统, 仅单只人眼即可确定物体的三维信息。
A.
正确
B.
错误
【单选题】According to the passage, what is the main cause of Patrick stealing the money?
A.
Patrick was made a partner of the firm.
B.
The partners agreed to have the money transferred.
C.
Patrick had access to all the files in the firm.
D.
Bogan decided to hire Patrick nine years earlier.
【单选题】甲公司2016年12月向乙公司提供某专利的使用权。合同规定:使用期限为五年,一次性收取使用费120,000元,不提供后续服务,款项已经收到。则甲公司当年应确认的使用费收入为( )元。
A.
0
B.
2，000
C.
24,000
D.
120,000
【单选题】According to the passage, what is the main cause of Patrick stealing the money?
A.
Patrick was made a partner of the firm.
B.
The partners agreed to have the money transferred.
C.
Patrick had access to all the files in the firm.
D.
Bogan decided to hire Patrick nine years earlier.
【单选题】St. Patrick’s Day is ______.
A.
the traditional death date of Saint Patrick
B.
the birthday of Saint Patrick
C.
the day when Saint Patrick returned to Ireland
D.
the day when Saint Patrick was captured
【简答题】( )是中国历史上第一位女宇航员。
【简答题】A．Gerard. B．Patrick. C．Raleigh. D．Kelly.
【单选题】According to the passage, what is the main cause of Patrick stealing the money?
A.
Patrick was made a partner of the firm.
B.
The partners agreed to have the money transferred.
C.
Patrick had access to all the files in the firm.
D.
Bogan decided to hire Patrick nine years earlier.
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