普伐他汀是一种调节血脂的药物,其结构如图。下列关系普伐他汀的性质描述不正确的是
| A.能与FeCl3溶液发生显色反应 |
| B.能使酸性KMnO4溶液褪色 |
| C.能发生加成、取代、消去反应 |
| D.1mol该物质在溶液中最多可与2molNaOH反应 |
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 |
I can’t leave. She told me that I ______ stay here until she comes back.
| A.can | B.must | C.will | D.may |