一般说来,地层孔隙压力越大,其破裂压力就越()。
A、低
B、不影响
C、高
参考答案:C
Teenagers in the 1950s, who had to ______ an increasingly atomized family life and domestic and international tensions, scorned the sterile version of American life.
A.injure
B.conjure
C.confront
D.inflow
在生态系统中,碳元素参与物质循环的主要形式是( )。
A.二氧化碳
B.碳酸盐
C.碳酸
D.葡萄糖