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【单选题】
If there is reinforcement in the tension zone only, It is called ( ).A.
truss
B.
Singly re i nforced beam
C.
doubly reinforced beam
D.
cantilever
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【单选题】If you happen to see the process of cooking in a restaurant, you might see the cook using rubbish oil, which is a common _____ in China nowadays.
A.
sense
B.
rule
C.
practice
D.
activity
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