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【单选题】
关于胆石症，下列说法不正确的是A.
按部位分胆囊结石、肝内胆管结石和胆外胆管结石
B.
根据成分，胆色素结石居多
C.
是多因素综合作用的结果
D.
胆道内异物可成为结石的核心
E.
胆囊结石常与急性胆囊炎并存
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反馈参考答案：
举一反三
【判断题】Increased demand for a country's exports causes its currency to depreciate.
A.
正确
B.
错误
【单选题】The second paragraph tells us that the increased demand for electricity today .
A.
has led to the decrease in supplies of oil
B.
means that more countries are interested in nuclear power
C.
has increased the risk of accidental explosions
D.
has increased the very means of producing more atomic bombs
【单选题】农药残留包括哪些物质？
A.
残存于环境、生物体和食品中的农药及其衍生物
B.
残存于环境、生物体和食品中的农药及其代谢物和降解物
C.
残存于环境、生物体和食品中的农药及其所含杂质
D.
以上全部都是
【简答题】有害物质的检查包括哪些内容 ( ) A.有机氯、有机磷农药残留量 B.重金属 C.黄曲霉毒素 D.砷盐A. 1 B. 1 C. 1 D. 1
【单选题】Increased demand for a business item
A.
The economic condition of the enterprise improves, but the economic condition of the element that the enterprise uses deteriorates
B.
The economic condition of the enterprise deteriorates, but the economic condition of the factor used by the enterprise improves
C.
The economic situation of the enterprise and the factors used has improved
D.
The economic situation of the enterprise and the factors used has deteriorated.
【单选题】Increased demand for a country's _________ causes its currency to appreciate in the long run, while increased demand for _________ causes its currency to depreciate.
A.
imports; imports
B.
imports; exports
C.
exports; imports
D.
exports; exports
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