【单选题】Questions 12 to 15 are based on the conversation you have just heard .
A.
Lower the tax for companies that employ young people.
B.
Maintain sustainable economic development.
C.
Promote programs that encourage training.
【单选题】Questions 8 to 11 are based on the conversation you have just heard.
A.
They can develop into human organ.
B.
They are able to cure cancer.
C.
They help to recreate stem cells.
D.
They are able to create new DN
【判断题】岩石抗风化能力主要依赖为它的矿物构成;而矿物的稳定性则与鲍文反应序列有关。即,结晶越早的矿物在地表越容易被风化,反之,则难风化。
【多选题】关于成本加成定价法,以下说法正确的有( )