One of the wrong notions about science is that many scientific discoveries have come about （）.

A．accordingly

B．accidentally

C．artificially

D．additionally

工程中的CFG桩是指（）。

A.灰土碎石桩

B.水泥粉煤灰碎石桩

C.粉体喷射搅拌桩

D.水泥浆搅拌桩