【单选题】Which of the following building is in Chicago?
C.
The Empire State Building
【单选题】Which building are they visiting?
B.
The Empire State Building
【单选题】The building which _____________ at present will be used for science
【单选题】目前,在机械图样中仍采用GB4457.4-84中规定的()种线型。
【单选题】目前,在机械图样中仍采用GB4457.4-84中规定的()种线型。
【单选题】目前,在 ( ) 中仍采用 GB4457.4-84 中规定的 8 种线型。 制图