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【单选题】
HLB值为13-15的表面活性剂通常用作A.
润湿剂
B.
增溶剂
C.
洗涤剂
D.
W/O型乳化剂
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】运行结果:()。
A.
Array ( [0] => php [1] => array [2] => example [3] => array )
B.
Array ( [0] => php [1] => array [2] => example )
C.
Array ( [1] => array [3] => array )
D.
Array ( [0] => php [2] => example [3] => array )
【简答题】如何在你的显示器上观测图像的像素?1 台笔记本的屏幕分辨率为 1366×768,长宽
比例是 4:3、16:9 还是 16:10?屏幕分辨率(以像素每英寸(DPI)为单位)是多少?选择一
个高分辨率图像、一个低分辨率图像,比较分别观察到像素时图像的放大倍数的差异。
【简答题】已知转炉造渣碱度要求为3.0，铁水中含Si为1.2%，石灰有效为70%，计算吨钢石灰加入量是多少？
【单选题】运行结果:()。
A.
Array ( [0] => is [1] => an [2] => array [3] => this )
B.
Array ( [0] => is [1] => an [2] => this [3] => array )
C.
Array ( [0] => this [1] => is [2] => an [3] => array )
D.
Array ( [0] => is [1] => this [2] => an [3] => array )
【单选题】运行结果:()。
A.
Array ( [0] => this [1] => is [2] => an [3] => array )
B.
Array ( [0] => is [1] => an [2] => array [3] => this )
C.
Array ( [0] => is [1] => this [2] => an [3] => array )
D.
Array ( [0] => is [1] => an [2] => this [3] => array )
【判断题】An example essay may use general instances or actual cases to convince readers that a particular point is true.
A.
正确
B.
错误
【单选题】运行结果:()。
A.
Array ( [0] => this [1] => is [2] => an )
B.
Array ( [0] => this [1] => is [3] => array )
C.
Array ( [0] => this [2] => an [3] => array )
D.
Array ( [1] => is [2] => an [3] => array )
【判断题】An outline is a general plan of what you are going to write, so it is not important for writing a cause-and-effect essay.
A.
正确
B.
错误
【简答题】转炉炼钢对于入炉铁水的有( )、( )、( )等三方面的要求。
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