【简答题】在外力作用下,材料抵抗塑性变形和断裂的能力称为____。在外力作用下,材料不能恢复的变形称为____,产生永久变形而不断裂的能力称为____。____ 是指固体材料对外界物体机械作用的局部抵抗能力。金属材料抵抗冲击载荷的能力称为____。 ____是指金属材料在无限多次交变载荷作用下而不破坏的最大应力。
【简答题】The novel “The Da Vinci Code” ______ a great success and was translated into 44 languages in 2004. A. appreciated B. enjoyed C. won D. seized
【单选题】The novel “The Da Vinci Code” ______ a greatsuccess and was translated into 44 languages in 2004.
【单选题】Which of the following statement about Leonardo da Vinci is true?
A.
Leonardo da Vinci was a great artist, but not much of a scientist.
B.
Bill Gates spent a large sum of money to buy Leonardo da Vinci's 65 surviving manuscripts in order to keep them in the United States.
C.
Leonardo da Vinci once wrote and illustrated a 72 - page manuscript. with the left hand.
D.
The manuscript. which costs Bill Gates 30.8 million dollars contains Leonardo' s view on natural scenery.
【多选题】下面关于邮件的封面书写,说法正确的有( )。
【单选题】教育观察研究应遵循的基本原则不包括( )。
【多选题】下列关于国际邮件的封面书写说法正确的有()。
A.
收件人名址应写在邮件封面中间靠右偏下位置,与邮件长度方向平行
B.
寄件人的姓名、地址应当写在邮件封面的左上角或者写在邮件的背面
C.
收件人名址书写顺序的第二行写街道名和门牌号码