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【单选题】
一切阶级斗争，归根结底都是围绕（ ）这个轴心展开的。A.
政治利益
B.
经济利益
C.
道德标准
D.
社会标准
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反馈参考答案：
举一反三
【简答题】GB2760-2014中食品防腐剂共( )种。
【单选题】— He hasn't finished the work up to now. —Well, he____ . [ ]
A.
ought have
B.
should have
C.
ought to
D.
should
【简答题】— He ought to have been warnedof the er. — ______, but he just wouldn’t listen tome. A. Soought he B. So he was C. Sowas he D. So he had
【单选题】下列不属于《食品安全国家标准 食品添加剂使用标准》(GB 2760-2014)中甜味剂的是( )
A.
环己基氨基磺酸钠(又名甜蜜素)
B.
三氯蔗糖(又名蔗糖素)
C.
糖精钠
D.
苯甲酸及其钠盐
【单选题】He _______ in Japan as he left by boat last month.
A.
ought to arrive
B.
ought to have arrived
C.
should arrive
D.
must arrive
【单选题】I suppose he ought to have known that,________?
A.
don’t I
B.
oughtn’t he
C.
do I
D.
ought he
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