男性,50岁,右上腹胀痛2个月。体格检查:肝肋下3cm,脾肋下2cm,移动性浊音阳性。HbsAg阳性,B超检查见肝右叶有一最长径为5cm的占位病变。对该病最有确定诊断意义的检查是()。
A. B超检查
B. 腹部CT检查
C. X线检查
D. 肝功能检查
E. 肝穿刺针吸细胞学检查
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)
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)