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【单选题】
下列哪项是枳壳的主要成分A.
苷
B.
巴豆苷
C.
柚皮苷
D.
橙皮苷
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反馈参考答案：
举一反三
【单选题】It was some time ______ the door opened in response to his ring
A.
before
B.
when
C.
after
D.
since
【单选题】It was some time later I realized he had lied to me.
A.
when
B.
that
C.
since
D.
before
【多选题】对下列哪些情形,行政机关应当办理行政许可的注销手续?
A.
张某取得律师执业证书后，发生交通事故成为植物人
B.
田某违法经营的网吧被吊销许可证
C.
李某依法向国土资源管理部门申请延续采矿许可，国土资源管理部门在规定期限内未予答复
D.
刘某通过行贿取得行政许可证后，被行政机关发现并撤销其许可
【单选题】It was some time _____ I realised the fact that life had become difficult for many villages in western Europe.
A.
until
B.
before
C.
unless
D.
since
【单选题】It was some time________we realised the truth. [ ]
A.
when
B.
until
C.
since
D.
before
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