单项选择题

The building of the new subway lines in the city has been ______due to lack of enough in- vestment.

A．held up
B．held on
C．held out
D．held back
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单项选择题
We live in a materialistic society and are trained from our earliest years to be acquisitive. When we grow old enough to earn a living, it does not surprise us to discover that success is measured______ the money you earn.
A．in line with
B．in terms of
C．in regard to
D．in case of
单项选择题
Vitamins necessary in small amounts in the diet for the normal growth and maintenance of are needed for______ foods into energy and body maintenance.
A．shifting
B．transferring
C．altering
D．transforming
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