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【单选题】
提供其分子中全部N和C原子合成嘌呤环的氨基酸是（ ）A.
天冬氨酸
B.
丝氨酸
C.
甘氨酸
D.
丙氨酸
E.
谷氨酸
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皮皮学刷刷变学霸
举一反三
【单选题】The labor force is considered to be:
A.
everyone who is employed.
B.
everyone who is employed plus everyone who is unemployed.
C.
the population of the nation.
D.
those not frictionally unemployed plus all others employed.
【单选题】The labor force is defined as the
A.
number of people over 16 years of age.
B.
number of people who are working.
C.
sum of employed and unemployed people.
D.
number of people in blue-collar jobs.
【多选题】根治HP的治疗方案正确的是（ ）
A.
阿莫西林+罗红霉素+甲硝唑
B.
奥美拉唑+阿莫西林+克拉霉素
C.
奥美拉唑+甲硝唑+阿莫西林
D.
胶体铋剂+克拉霉素+甲硝唑
E.
胶体铋剂+阿莫西林+甲硝唑
【单选题】The labor force is defined as
A.
the total number of individuals who are employed.
B.
the sum of the total number of individuals who are employed and the officially unemployed.
C.
the sum of the total number of individuals who are employed, the officially unemployed, and discouraged workers.
D.
the total number of individuals who are 16 years old and older, but not retired.
E.
none of the above
【单选题】The labor force is defined as people
A.
who have a job or are looking for a job.
B.
in the working-age population who have a job.
C.
in the working-age population who have a full time job.
D.
who are 16 years of age or older.
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