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【多选题】
衡量液体对母材润湿能力大小,可用液相与固相接触时的接触角大小来表示。当接触角为( )时,液体可以润湿固体。A.
0°
B.
20°
C.
100°
D.
120°
E.
150°
F.
180°
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举一反三
【单选题】(课文理解U5textA P15-16) Which sentence can describe the situation of workers without special or valuable skills according to paragraphs 15-16?
A.
It is not difficult for trade unions to organize workers online.
B.
Workers can not afford to pay for their pension pots and their health-care coverage has also decreased.
C.
Workers on a contract basis working through online platforms also have the right to gain a minimum wage.
D.
Because of automation, the demand for low-skill labors is increasing.
【单选题】黑盒测试方法是根据软件产品的功能设计规格说明书,通过运行程序进行测试,证实每个已实现的功能都符合设计要求。如果某产品的文本编辑框允许输入1~2个字符,采用()测试方法,其测试数据为:0个字符、1个字符、2个字符和256个字符。
A.
等价类划分
B.
边界值分析
C.
比较测试
D.
正交数组测试
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