The outline of rooftops and chimneys ________ against the pale sky.
A、pulledoutD
A离开B注意、留神C提供D显眼、突出
英文翻译：在经济危机之后，人们不再认为他们房子的价值会继续升高。
Sincewehaveafocusedsubject，weshouldnottalk________.
Robotsdifferfromautomaticmachines________aftercompletionofonespecifictask，theycanbereprogrammedbyacomputertodoanotherone.
Thatproposalisessentiallyirrelevant________theissueathand.
Pleasewriteareport_______theabovesubjectsaretobecovered.
