A= 3↓ EVALUATE A↓ WHEN 1↓ COMPUTE A = A

A= 3↓ EVALUATE A↓ WHEN 1↓ COMPUTE A = A +1↓ WHEN 2↓ COMPUTE A = A +2↓ WHEN 3↓ COMPUTE A = A +3↓ WHEN OTHER↓ COMPUTE A = A +4↓ END-EVALUATE↓ 执行后，A的值为

A.4

B.5

C.6

D.7

正确答案是C