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【单选题】
根据劳动合同法的规定，劳动合同分为()劳动合同、无固定期限劳动合同和以完成一定工作任务为期限的劳动合同。A.
固定期限
B.
一年
C.
五年
D.
十年
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【单选题】听力原文：W: Exercise, exercise, exercise! We hear so much about it these days that even the experts can't agree on which exercises are best. Now some doctors are strongly encouraging arm exercises. M: Arm...
A.
They don't get rid of flabby arms.
B.
They can damage arm muscles.
C.
They aren't acceptable to most people.
D.
They can raise one's blood pressure.
【单选题】听力原文：W: Exercise, exercise, exercise, we hear so much about it these days that even the experts can't agree on which exercises are best. Now some doctors are strongly encouraging arm exercises. M: Arm...
A.
They don't get rid of flabby arms.
B.
They can damage arm muscles.
C.
They aren't acceptable to most people.
D.
They can raise one's blood pressure.
【简答题】1-1 什么是金属的力学性能? 根据载荷形式的不同,力学性能主要包括哪些指标? 1-2 什么是强度? 什么是塑性? 衡量这两种性能的指标有哪些? 各用什么符号表示? 1-3 低碳钢做成的d0 = 10mm 的圆形短试样经拉伸试验,得到如下数据: Fs = 21100N, Fb = 34500N, l1 = 65mm, d1 = 6mm。 试求低碳钢的 σs、σb、δ5、ψ。 1-4 ...
【单选题】听力原文：W: Exercise, exercise, exercise, we hear so much about it these days that even the experts can't agree on which exercises are best. Now some doctors are strongly encouraging arm exercises. M: Arm...
A.
They don't get rid of flabby arms.
B.
They can damage arm muscles.
C.
They aren't acceptable to most people.
D.
They can raise one's blood pressure.
【单选题】听力原文：W: Exercise, exercise, exercise! We hear so much about it these days that even the experts can't agree on which exercises are best. Now some doctors are strongly encouraging arm exercises. M: Arm...
A.
They don't get rid of flabby arms.
B.
They can damage arm muscles.
C.
They aren't acceptable to most people.
D.
They can raise one's blood pressure.
【简答题】衡量试样拉伸试验的强度指标有__________________和_______________等,他们分别用符号Rel、Rm来表示。
【简答题】衡量试样拉伸试验的强度指标有（）、（）等，它们分别用符号（）、（）表示。
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