正装（拆）法竖立桅杆和拆除桅杆作业要点是：控制好桅杆临时分层揽风绳，以防止桅杆晃动或倾倒。
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全麻患者侧卧位时上下侧比较肺内气血分布正确的是（）清醒患者侧卧位时肺内气血分布正确的是（）
A. 下肺血流多、通气少
B. 下肺通气多、血流少
C. 下肺血流多、通气多
D. 上肺通气多、血流少
E. 上肺血流多、通气少
To configure the VLAN trunking protocol to communicate VLAN information between two switches, what two requirements must be met?（）
A. Each end of the trunk line must be set to IEEE 802.1E encapsulation.
B. The VTP management domain name of both switches must be set the same.
C. All ports on both the switches must be set as access ports.
D. One of the two switches must be configured as a VTP server.
E. A rollover cable is required to connect the two switches together.
F. A router must be used to forward VTP traffic between VLANs.
还原期应力求炉体密封性好，目的是减少炉外空气进入，保持炉内（）气氛，能较好地保护炉内白渣。
10岁男性小脑肿瘤患儿，脑脊液中镜检见成团的小圆细胞，偶见菊形团样排列。最可能的脑病变是（）
A. 星形细胞瘤
B. 髓母细胞瘤
C. 多形性胶质母细胞瘤
D. 脉络丛乳头状瘤
E. 松果体细胞瘤
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