并发进程数的增加会使得内存访问的局部性特征的 ______ ，进而导致缺页率 ______ 。填空提示：A：上升、B：降低、要求填写大写字母；
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NPDR consists of a variable display, which include:
A. cotton wool spots
B. hard exudates
C. intraretinal hemorrhages
D. microaneurysms,
The most important risk factor for developing ROP is
A. prematurity.
B. Low BW
C. Low GA,
D. Assisted ventilation for longer than one week
Type I ROP is defined as any of the following:
A. Five contiguous clock hours or eight total clock hours of stage 3 in zone III
B. Any stage ROP with plus disease in zone I
C. Stage 3 ROP without plus disease in zone I
D. Stage 2 or 3 ROP with plus disease in zone II
Screening criteria of ROP:
A. all infants with birth weight (BW) ≤1500 g or gestational age (GA) ≤30 weeks,
BW between 1500 g and 2000 g or GA >30 weeks whose clinical course places them at increased risk for ROP
C. all infants with birth weight (BW) ≤2000 g
D. GA ≤30 weeks whose clinical course places them at increased risk for ROP
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