【判断题】对经常处于或可能处于较低负温环境下工作的钢结构,特别是焊接结构,应选择化学成分和力学性能较好、冷脆临界温度低于结构工作环境温度的钢材。
【判断题】In 1620, Puritans founded the Massachusetts Bay Colony.
【单选题】The Puritans went to the New World in 1620 because _____.
A.
they could not have the right to worship in their own way
B.
they wanted to fnd something new
C.
they tried to sail to America on the Mayflower
D.
they intended to find freedom
【多选题】思维导图的特点有
C.
分支由一个关键的图形或者写在产生联想的线条上面的关键词构成
【判断题】If business goes well, the cost of operation exceed the revenues from sales and the company realizes a profit.()
【单选题】Revenues from oil are the biggest single ______ in the country's income.
【单选题】若w,x,y,z,m均为int型变量,则执行下面语句后的m值是: w= 1;x = 2;y= 3;z=4; m=(w