A.used she
B.did she
C.didn’t she
D.should she
第1题:
第2题:
第3题:
矩阵A=Array[a,{4,5}],取第1,4两行,2,3,5列元素的子矩阵,使用语句是
A.Part[A,{1,4},{2,3,5}]
B.Take[A,{1,4},{2,3,5}]
C.Part[A,{2,3,5},{1,4}]
D.Take[A,{2,3,5},{1,4}]
第4题:
Given the following DDL for the PARTS table:CREATE TABLE parts (part_no INT(9) NOT NULL, part_name VARCHAR(24), part_remain INT(9));All part numbers entered will be different and all rows should be displayed in order of increasing part numbers whenever the table is queried. Which of the following create index statements will meet this criteria and require the least amount of storage for the index object?()
A.CREATE UNIQUE INDEX idx_partno ON parts(part_no)
B.CREATE UNIQUE INDEX idx_partno ON parts(part_name ASC)
C.CREATE UNIQUE INDEX idx_partno ON parts(part_name, part_no ASC)
D.CREATE UNIQUE INDEX idx_partno ON parts(part_no, part_name ASC)
第5题:
在Creo 中,需选用实体零件公制模板是()。
A.mmns_part_solid
B.mmns_harn_part
C.solid_part_mmks
D.inlbs_part_solid
第6题:
1、利用艾拉托斯特尼筛法无穷素数列表primes (参见讲义第8章) 获得介于100000和200000之间素数的方法是
A.take 200000 (take 100000 primes)
B.take 100000 (take 200000 primes)
C.take 100000 (drop 100000 primes)
D.takeWhile (\x -> x <= 200000) (dropWhile (\x -> x <= 100000) primes)
E.takeWhile (\x -> x <= 200000) (take 200000 primes)
F.[x | x <- primes, x >100000, x < 200000]
G.[x | x <- take 200000 primes, x >100000, x < 200000]