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【判断题】
SLA快速成型的零件复杂程度与成本无关。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Which word means a way of working or a process for doing something?
A.
machinery
B.
mechanism
C.
machine
D.
mechanic
【简答题】In this Business English course, for knowledge aims, students are designed to be able to have a understanding of business English practical theory and basic knowledge; to learn to write business , , a...
【简答题】求二元函数z＝f(x，y)＝x2y(4－x－y)在由直线x＋y＝6、x轴和y轴所围成的闭区域D上的极值、最大值与最小值．
【多选题】The working process of rescheduling an appointment includes:约会改期的步骤(5条)
A.
Call the person you are scheduled1打电话给你要改期约会的人
B.
Apologize for having to reschedule为改期道歉
C.
Explain reasons for rescheduling解释改期的原因
D.
Ask for another good time要求换别的时间
E.
Appreciate the rescheduled date感谢别人同意改时间
F.
Keep scilent保持沉默
【单选题】可首选洋地黄治疗的是（）
A.
冠心病伴快速心房颤动
B.
肥厚型梗阻性心肌病伴快速心房颤动
C.
二度或高度房室传导阻滞
D.
缩窄性心包炎伴心力衰竭
E.
预激综合征伴心房颤动或扑动
【单选题】Darwin, Charles Robert (1809-1882), was a British scientist, who laid the foundation of modern theory with his concept of the development of all forms of life through the slow-working process of natur...
A.
developmental
B.
revolutionary
C.
evolutionary
D.
scientific
【多选题】What is the correct working process of interpreting?
A.
listening
B.
memorizing
C.
reconstructing
D.
delivering
【简答题】求下列二元函数在给定条件下的条件极值．
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