【单选题】Mary makes a lot of mistakes, she is a _____girl.
【判断题】银行信用是在商业信用广泛发展的基础上产生的,银行信用发展起来以后,会逐步取代商业信用。
【单选题】Bob never does his homework ( )Mary. He often makes a lot of mistakes.
【单选题】Why do you think John feels flattered?
A.
Because Mary seems to like him.
B.
Mary makes a lot of compliments about John’s style.
C.
Mary seems interested in buying clothes at John’s retailer.
【判断题】砌筑砂浆的作用是将砌体材料粘结起来,因此,它的主要性能指标是粘结抗拉强度。( )
【判断题】银行信用是在商业信用广泛发展的基础上产生的,银行信用发展起来以后,会逐步取代了商业信用。
【简答题】在砌体中砌筑砂浆的作用有()、()、()。