蠕变
参考答案:
是指岩石在恒定的荷载作用下,变形随时间逐渐增大的性质。
阅读短文,回答问题。
In an English class, Miss Green checks homework. She asks Mike, "What is your favourite fruit, Mike?"
"Strawberries." Mike answers.
"Well, please spell the word, strawberry." says Miss Green.
"Oh, I change my mind. My favourite fruit is an apple." Mike says.
1. What kind of fruit does Mike like best?
2. What does Miss Green ask him to do?
3. Why does he change his mind?
患者,男,49岁。持续上腹痛2小时,伴恶心、呕吐。查体:上腹压痛。不必要的检查是().
A.心电图
B.血淀粉酶
C.血脂肪酶
D.X线腹平片
E.腹部B超