【单选题】The phrase' this element of the unknown' ( paragraph 3 ) refers to ______.
A.
when and where earthquakes may occur
B.
the percentage of earthquake occurrences
C.
the extension of earthquake zones
D.
what big damage earthquakes may cause
【单选题】用来传递双向转矩的一对切向键,在轴上应相隔 为宜。
【判断题】11 依据《内燃、电力机车检修工作要求及检查办法》文件对规,也可采取专项、 全面 检查等形式进行深入检查,掌握确切情况。
【单选题】I got this bicycle for ______.My friend gave it to me when she bought a new one.
【单选题】The phrase ' selling point' in Paragraph 4 most probably means that orderliness
A.
is something that can help them sell their products well
B.
really benefits the Danes
C.
is the feature that makes the goods attractive to the buyer
D.
makes the Danes very much like the Germans or the Swedes