Hydrogen is a colorless, gas.
A. thoughtless
B. nameless
C. odorless
D. noiseless
查看答案
I have a set of knives and forks.
A. useless
B. stainless
C. voiceless
D. weightless
Evidence the government’s claims.
A. contradicted
B. coordinated
C. contaminated
D. cooperated
He seems to have one important fact.
A. denied
B. overseen
C. overlooked
D. supervised
Starch is to life.
A. impossible
B. inevitable
C. inaccessible
D. indispensable