【单选题】Which of the following may occur during an annealing heat treatment?
A.
Stresses may be relieved.
B.
Ductility may increase.
C.
Toughness may increase.
【单选题】患者女,60岁。烦躁不安,面色苍白,体检血压90/60mmHg,脉搏呈丝状脉,可能是
【判断题】During Lesser Heat and Greater Heat, due to the hot weather, people prefer to choose light food.
【简答题】Heat is removed from the body during sweating.
【单选题】behind the mountain, the sun set.
B.
山背后,太阳落下去了。以上两个翻译选项,哪个是归化?
【单选题】During heat treatment of steel, austenite transforms into martensite by .
【简答题】气门组的主要组成机件:()、气门座、气门导管、气门弹簧及弹簧座、锁销等。
【多选题】向招标单位申请投标,可以直接报送,也可以采用 ,其报送方式和所报资料必须满足招标人在招标公告中提出的相关要求。
【单选题】患者,女,60岁。烦躁不安,面色苍白,体检:血压90/60mmHg,脉搏呈丝状脉,患者可能是
【单选题】关于短路计算中的,下面描述正确的是( )
B.
标幺值短路计算结果可能和欧姆法短路计算结果的不同。
C.
标幺值法计算短路电流时,基准容量一定要取100MVA。