题目内容
（请给出正确答案）
[主观题]
The camps are not usually tent-tupe camps. They are mostly long-established ______ structu
res, often with strange Indian names.
A．permanent
B．monotonous
C．raw
D．historical
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仰卧屈膝位（）
A、乙状结肠镜检查
B、腹部手术后
C、脑室引流
D、检查肝脾时
E、肛门检查
