某烷烃的结构简式为
。有甲、乙、丙、丁四个同学将其命名依次为：2,2二甲基－4乙基戊烷；3,5,5三甲基己烷；4,4二甲基2乙基戊烷；2,2,4三甲基己烷。下列对四位同学的命名判断中正确的是( )
| A．甲的命名主链选择是正确的 | B．乙的命名是正确的 |
| C．丙的命名主链选择是正确的 | D．丁的命名是正确的 |
相关试题
The children loved their day trip, and they enjoyed the horse ride ______.
| A．most | B．more | C．less | D．little |
Progress______ so far very good and we are sure that the work will be finished on time.
| A．was | B．had been | C．has been | D．will be |
Charles was alone at home, with_______ looking after him.
| A．someone | B．anyone | C．not one | D．no one |
It is often ______ that human beings are naturally equipped to speak.
| A．said | B．to say | C．saying | D．being said |
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