快门不变,光圈数值调大一档,所纳入的光线就多一倍。
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A company needs additional storage for a block I/O based database application. The application has low I/O bandwidth requirements across the campus. The customer has a TCP/IP infrastructure and is interested in low-cost products that are compatible with its environment. Which technology is most appropriate for this customer?()
A. SAN
B. FCoE
C. FCIP
D. iSCSI
接报人员触电意外时,以下处理措施不符合要求的是()。
A. 立即切断电源
B. 无法立即切断电源时,应用坚硬物品将带电物与人体分开
C. 切断电源后不要采取拖、抬等动作移动触电者
D. 拨打“120”请求救援
我国的色标编码法中,每1000个号码更换一种颜色的是误!()。
A. 首号色标编码
B. 尾号色标编码
C. 中间号色标编码
D. 顺序号色标编码
E. 单色色标编码
Stability is determined by the relationship of the center of gravity and the().
A. water depth
B. keel
C. center of flotation
D. center of buoyancy