Exploring _____space is exciting, yet dangerous.
There is _____need for both robots and humans for space exploration.
A. the; a B. a; a C. /; a D. /; the
Exploring _____space is exciting, yet dangerous.
There is _____need for both robots and humans for space exploration.
A. the; a B. a; a C. /; a D. /; the
C
该题考查冠词的用法。本题中space是不可数名词，此前不可加冠词；need是可数名词，此处表示泛指，所以要用不定冠词。因此该题最佳答案是C。