畜禽骨中的蛋白质是较为全价的不可溶性蛋白质，生物学效价高。()
掘进工作面打眼时，可以充分利用放炮剩余的残眼继续加深，以节约打眼时间。()
The author holds in the last paragraph that "fairness"
A. is the cornerstone of the Britain"s coalition government.
B. means different or even opposite things to different people.
C. displays the inclusiveness of the English language.
D. has become a convenient cliche for the British politicians.
We can learn from the opening paragraph that
A. people are misled by the name Smugglers" Gulch.
B. Smuggler"s Gulch is the toughest entrance to steal into USA.
C. Rafael will continue his risky attempt to jump the fence.
D. Smuggler"s Gulch is secured by advanced tracking tools.
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