22（）
A. What else is
B. Is there anything
C. What's left
D. What on earth is
--The phone is ringing.--Who could ______ be It is already midnight.
A. he
B. it
C. this
D. there
He walked ______ whole day,but by 5:30 he had only covered ______ quarter of the distance.
A. the;a
B. a;the
C. the;the
D. a;a
下列说法中不正确的是（）。
A. 对所有NPV≥0的方案比较其净现值，选择净现值最大的方案作为最佳方案
B. 按方案净现值的大小直接进行比较，与按增量投资净现值的比较有不一致的结论
C. 对互斥方案评价，首先剔除NPV＜0的方案，即进行方案的绝对效果检验
D. 直接用净现值的大小比较比用增量投资净现值的比较更为方便
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