广义的家庭就是指一夫一妻制构成的单元。
食品毒物的危险度评估一般采用（），而要避免（）和（）所带来的高成本。
凯恩斯认为经济危机是与“预期收益规律”的心理作用分不开的，即资本家害怕投资越多，利润率越低，导致国民收入水平和对原料、消费品的需求下降。基于此种分析，要消除经济危机应该（）。 ["实行赤字预算，增加需求","通货膨胀，增加国民收入","降低融资成本，提高收益","降低银行利率，刺激消费"]
如果甲、乙组成的联合体中标，且在施工过程中由于乙公司所用施工技术不当出现了质量问题而遭到业主30万元索赔，则以下不符合法律规定的说法是（）。 ["A.虽质量事故是乙的技术所致，但联合承包体双方对承包合同的履行承担连带责任，甲或乙无权拒绝业主单独向其提出的索赔要求 ","B.共同投标协议约定甲、乙各承担50%的责任，业主只能分别向甲、乙各索赔15万元 ","C.业主既可要求甲承担赔偿责任，也可要求乙承担赔偿责任 ","D.若乙先行赔付业主30万元，乙可以向甲追偿15万元"]
Given the following requirements: Create a table to contain employee data, with a unique numeric identifier automatically assigned when a row is added, has an EDLEVEL column that permits only the values 'C', 'H' and 'N', and permits inserts only when a corresponding value for the employee's department exists in the DEPARTMENT table. Which of the following CREATE statements will successfully create this table?（） ["CREATE TABLE emp ( empno SMALLINT NEXTVAL GENERATED ALWAYS AS IDENTITY, firstname VARCHAR(30) NOT NULL, lastname VARCHAR(30) NOT NULL, workdept CHAR(3) NOT NULL, edlevel CHAR(1), PRIMARY KEY emp_pk (empno), FOREIGN KEY emp_workdept_fk ON (workdept) REFERENCES department (deptno), CHECK edlevel_ck VALUES (edlevel IN ('C','H','N')), );","CREATE TABLE emp ( empno SMALLINT NOT NULL GENERATED BY DEFAULT AS IDENTITY, firstname VARCHAR(30) NOT NULL, lastname VARCHAR(30) NOT NULL, workdept CHAR(3), edlevel CHAR(1), CONSTRAINT emp_pk PRIMARY KEY (empno), CONSTRAINT emp_workdept_fk FOREIGN KEY (workdept) REFERENCES department (deptno), CONSTRAINT edlevel_ck CHECK edlevel VALUES ('C','H','N') );","CREATE TABLE emp ( empno SMALLINT NEXTVAL GENERATED BY DEFAULT AS IDENTITY, firstname VARCHAR(30) NOT NULL, lastname VARCHAR(30) NOT NULL, workdept CHAR(3) NOT NULL, edlevel CHAR(1) CHECK IN ('C','H','N')), CONSTRAINT emp_pk PRIMARY KEY (empno), CONSTRAINT emp_workdept_fk FOREIGN KEY department (deptno) REFERENCES (workdept) );","CREATE TABLE emp ( empno SMALLINT NOT NULL GENERATED BY DEFAULT AS IDENTITY, firstname VARCHAR(30) NOT NULL, lastname VARCHAR(30) NOT NULL, workdept CHAR(3), edlevel CHAR(1), CONSTRAINT emp_pk PRIMARY KEY (empno), CONSTRAINT emp_workdept_fk FOREIGN KEY (workdept) REFERENCES department (deptno), CONSTRAINT edlevel_ck CHECK (edlevel IN ('C','H','N')) )"]
构成综合课的基本组成部分有（）、（）、（）、（）、（）等五部分。
