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【单选题】
Can you _____ your brother _____ your school? [     ]
A.
take, to
B.
bring, to
C.
take, with
D.
bring, with
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【单选题】根据两个随机样本,计算得到s12=1.75,s22=1.23,要检验假设 ,则检验统计量的F值为( )。
A.
1.42
B.
1.52
C.
1.62
D.
1.72
【单选题】--- I’ll leave for Beijing this afternoon to see the opening ceremony of the 29th Olympic Games. -----If you______ tomorrow, I would go with you.
A.
were to leave
B.
will leave
C.
would leave
D.
leave
【单选题】根据两个随机样本,计算得到 = 1.75, = 1.23 ,要检验假设 ,则检验统计量的F的值为( )。
A.
1.42
B.
1.52
C.
1.62
D.
1.72
【单选题】女,28岁,因乏力、食欲下降、厌油、恶心5天,尿黄3天就诊,查体:皮肤及巩膜黄染,肝肋下2厘米,肝区叩击痛阳性,该患者属于
A.
显性感染
B.
隐性感染
C.
病原携带状态
D.
潜伏性感染
E.
重复感染
【简答题】垂直相交 两条线条以90度角相交,这提供了空间的最使用, 有一种坚固、大胆的感觉,使得设计工目容易建造。 请选出更合适的设计 A 设计一 B设计二
【单选题】根据两个随机样本,计算得到样本1的方差为1.75,样本2的方差为1.23,要检验两个样本方差是否相等,其检验统计量为()
A.
1.42
B.
1.52
C.
1.62
D.
1.72
【单选题】女,28岁,因乏力、食欲下降、厌油、恶心5天,尿黄3天就诊。查体:血压100/70mmHg。皮肤及巩膜黄染,肝肋下2cm,轻度触痛,肝区叩击痛阳性。不予考虑的检查是()
A.
肝功能检查
B.
乙肝五项
C.
甲肝抗体
D.
腹部B超
E.
HIV感染的检测
【单选题】Given the following DDL and INSERT statements: CREATE VIEW v1 AS SELECT col1 FROM t1 WHERE col1 > 10; CREATE VIEW v2 AS SELECT col1 FROM v1 WITH CASCADED CHECK OPTION; CREATE VIEW v3 AS SELECT col1 FR...
A.
0
B.
1
C.
2
D.
3
【单选题】In your multitenant container database (CDB) containing pluggable database (PDBs), the HR user executes the following commands to create and grant privileges on a procedure: CREATE OR REPLACE PROCEDUR...
A.
Create the CREATE_TEST procedure with definer’s rights.
B.
Grant the EXECUTE privilege to users with GRANT OPTION on the CREATE_TEST procedure.
C.
Create the CREATE_TEST procedure with invoker’s rights.
D.
Create the CREATE_TEST procedure as part of a package and grant users the EXECUTE privilege the package.
【简答题】若集合A 1 ,A 2 ,…,A n 满足A 1 ∪A 2 ∪…∪A n =A,则称A 1 ,A 2 ,…,A n 为集合A的一种拆分.已知: ①当A 1 ∪A 2 ={a 1 ,a 2 ,a 3 }时,有3 3 种拆分; ②当A 1 ∪A 2 ∪A 3 ={a 1 ,a 2 ,a 3 ,a 4 }时,有7 4 种拆分; ③当A 1 ∪A 2 ∪A 3 ∪A 4 ={a 1 ,a 2 ,a 3 ,...
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