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听力原文:A: Hello. B: Hello. Could I speak to Cathy Schaefer, please? A: Speaking. B: Oh, hi, Cathy. This is Dick Carpenter. Do you re member—from Bill Stevenson's party? A: Oh, of course, Dick. How are you? B: Just fine, thanks, Uh, Cathy, I was just wondering if you'd like to go to a Beethoven concert this Friday. A: Oh, I'd love to, Dick, really, but I'm afraid I can't this Friday. I have to work. B: Oh, that's too bad. Well, could we make it some other time then? A: Sure, let's. B: Well, are you free on Saturday night, by any chance? They're doing the same program. A: Saturday would be fine. What time does the concert start? B: At eight sharp, but I thought we could have dinner first. A: Oh, that sounds very nice. B: I'II pick you up at 5:30,OK? A: Fine. De you have my address? B: No. A: It's 761 Dearfield Drive. B: Is that D-E-A-R-F-I-E-L-D? A: That's right. Well, I guess I'll see you on Saturday then. B: Right. I'm looking forward to it. A: Me, too. Thanks so much for asking me. See you then. B: OK. So long for now. 1 Dick had planned to invite Cathy to go to a concert on (9) , but Cathy has to work on this day. 2 Concert starting time: At (10) sharp. 3 Dick will pick up Cathy at (11) 4 Cathy's address: (12) Dearfield drive.
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【单选题】不允许表在指定列上具有相同的值,但允许有空值,这种约束属于 【 】
A.
DEFAULT 约束
B.
UNIQUE 约束
C.
PRIMARY  KEY 约束
D.
其它 约束
【简答题】资料:利达有限公司2016年12月初成立,发生下列业务 (1)1 日,收到投资人投入的现金50 000元,银行存款1 000 000元,新设备800 000 元增值税税率为17% (2)1 日,从银行借款300000元, 期限3年,已存入银行。 (3)3 日,购入材料一批,价值70000元,增值税税率为17%,材料已验收入库,货款以银行存款支付。 (4) 5 日,从山川公司赊购材料一批,价值300...
【单选题】不允许数据库表在指定列上具有相同的值,但允许有空值,属于( )约束。
A.
DEFAULT
B.
CHECK
C.
PRIMARY KEY
D.
FOREIGN KEY
【多选题】品牌是一个集合概念,它包括
A.
商标
B.
包装
C.
品牌标签
D.
标签
E.
品牌名称
【单选题】设计调查表的步骤是( )(①确定调查表形式 ②拟定调查表提纲③设计调查表格 ④实验性调查,修改调查表)
A.
②①③④
B.
①③②④
C.
③②①④
D.
①②③④
【单选题】不允许表在指定列上具有相同的值,但允许有空值,这种约束属于( )
A.
DEFAULT约束
B.
UNIQUE约束
C.
PRIMARY  KEY约束
D.
FOREIGN  KEY约束
【单选题】设计调查表的步骤是()(1确定调查表形式 2拟定调查表提纲 3设计调查表格 4实验性调查,修改调查表)
A.
②①③④
B.
①③②④
C.
③②①④
D.
①②③④
【单选题】在PL/SQL中定义一个可以存放雇员表(EMP)的员工名称(ENAME)的PL/SQL表类型,应该()
A.
type array arr_type[emp.ename%type] index by binary_integer;
B.
type table arr_type[emp.ename%type] index by binary_integer;
C.
type arr_type is table of emp.ename%type index by binary_integer;
D.
type arr_type is pl_sql table of emp.ename%type index by binary_integer;
【判断题】强酸对皮肤组织的损伤力比强碱要高。
A.
正确
B.
错误
【单选题】患者,男,70 岁。胸部体检示胸廓前后径明显增宽,肋间隙饱满,腹上角增大。此胸廓形态为 田( )
A.
漏斗胸
B.
扁平胸
C.
桶状胸
D.
鸡胸
E.
正常
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