_______ provides many hours of air for astronauts in space.
#17237
A
An air tank
B
A power pack
C
A helmet
D
A space sleeping bag
推荐题目
Amy has just found a wallet lying on the ground. Can you find the correct sentence element(句子成分) of the underlined words in the sentence?
#17226
A
object complement
B
predicate
C
attributive
D
adverbial
—What is the of the sign on the bottle?—It “Keep away from the children”.
#17066
A
means; meaning
B
meaningful; meaning
C
meaning; means
D
means; mean