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【单选题】
不利用一般的检索系统，而是利用文献后面所列的参考文献，逐一追查原文（被引用文献），然后再从这些原文后所列的参考文献目录逐一扩大文献信息范围，一环扣一环地追查下去的方法是（）。A.
直接法
B.
循环法
C.
追溯法
D.
顺查法
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Offering lelp again F: May I help you with your(5)__________? M: Yes, please. Thankk you! F: Your room is on the third floor. Here is your key. I hope you'll (6)__________ your stay with us. M: Thank ...
【单选题】Your room is on the eighth floor. We’ll __________ the elevator on the left.
A.
take
B.
make
C.
have
D.
go
【多选题】关于供应胃的动脉起源,哪项是正确的?
A.
胃后动脉起自脾动脉
B.
胃右动脉起自肝动固有脉
C.
胃右动脉起自胃十二指肠动脉
D.
胃网膜右动脉起自肝总动脉
E.
胃短动脉起自脾动脉
【简答题】( )? here you are. your room is on the 7th floor. ( ).
【简答题】Inform Room Number Your room is on the 10th floor. This is ________________.
【简答题】Your room is on the_____(19楼)floor
【简答题】Showing the guest to his room A: Good morning, sir. You have two suitcases. Is that ri ght? B : Yes. T hat's right A: Please __ me and I'll ____ you to your room. Your room is on the 9th floor so we'l...
【单选题】关于供应胃的动脉起源,哪项是正确的
A.
胃右动脉起自脾动脉
B.
胃左动脉起自肝总动脉
C.
胃后动脉起自胃十二指肠动脉
D.
胃网膜右动脉起自肝固有动脉
E.
胃网膜左动脉起自脾动脉
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