问题

Philosophical problems arise when people ask questions that, though very , have certain characteristics in common.

A:diverse
B:relevant
C:abstract
D:consistent

正确答案是：

同类题型

you must remain calm

reserves are very important forpreserving many animals and plants, which would _______ run the risk ofbecoming extinct

I remember her face but I cannot_________where Imet her.[ ]

Sorry, I have to ________ now. It’s time for class. — OK, I’ll call back later.

Poverty has risen in Nigeria, with almost 100 million people living on less than $1 a day，________ economic growth