【单选题】An American Shipowner can ______ in an American port any ship in the same ownership as the one with which he has collided,in spite of the fact that the collision may have occurred in some distant part...
【单选题】工程中许多构件在工作时出现随时间而交替变化的应力,这种应力称为()。
【判断题】大小和方向均随时间周期性变化的力称为交变应力;方向不变,大小周期变化的称为重复应力。二者统称为循环应力。
【多选题】Where can you get a pet?
A.
Buy one in a pet shop.
B.
Ask someone to steal one for you.
D.
Wait for a baby pet from your friend's pet.
【单选题】构件受到随时间作()性变化的应力作用,这种应力称为交变应力或重复应力。
【判断题】打入桩没有明显的排挤土体作用,不用考虑对邻近结构(包括邻近基桩)的影响。
【单选题】I like your pet dog very much. But I can’t find _______ in the pet shop. Where did you buy _______?
【单选题】What is NOT the significance of the shift of business ownership?
A.
People can have income even they don't go to work.
B.
The employee won't blame the boss for his unfair allocation of profits.
C.
Workers won't complain about 'greedy corporations. '
D.
Retired workers can still receive money if they have contributed retirement plans before.
【简答题】随时间作周期替变化的应力称为___,作用在构件上随时间作周期性变化的载荷称为___。