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【多选题】
个人所得税的居民纳税人是指( )。A.
在中国境内有住所的个人
B.
在中国境内无住所又不居住的个人
C.
在中国境内无住所且居住不满1年的个人
D.
在中国境内无住所但居住满1年的个人
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【简答题】句型转换。 1. I like riding bikes.（改为同义句） _____ _____ is riding bikes. 2. The stamp on the desk is Ben's.（对画线部分提问） _____ _____ is Ben's? 3. This is a flower stamp.（改为复数句子） _____ are _____ stamps. 4. They d...
【单选题】My brother _______ while he _______ his bicy c le and h u rt himself
A.
f ell , was riding
B.
fell , is riding
C.
had fallen, rode
D.
had fallen. was riding
【单选题】下列各项中，应采用加权算术平均法计算的有( )。
A.
已知各企业劳动生产率和各企业产值，求平均劳动生产率
B.
已知计划完成百分比和计划产值，求平均计划完成百分比
C.
已知计划完成百分比和实际产值，求平均计划完成百分比
D.
已知生产同产品各企业的产品单位成本和总成本，求平均单位成本
【单选题】A man has genotype A1A2 G1G2 (one each of the A1 and A2 alleles of gene A, and one each of the G1 and G2 alleles of gene G) The A and G loci are on different chromosomes. What gametes will a single me...
A.
2 of A1A2, 2 of G1G2
B.
1 of A1A1, 1 of A1G1, 1 of A2G1, 1 of G1G2
C.
1 of A1, 1 of A2, 1 of G1, 1 of G2
D.
1 of A1G1, 1 of A1G2, 1 of A2G1, 1 of A2G2
E.
None of the above
【单选题】A man has genotype A1A2 G1G2. (one each of the A1 and A2 alleles of gene A, one each of the G1 and G2 alleles of gene G ) The A and G loci are on difference chromosomes. What gametes will many meioses...
A.
1/2 A1A2, 1/2 G1G2
B.
1/4 A1A1, 1/4 A1G1, 1/4 A2G1, 1/4 G1G2
C.
1/4 A1, 1/4 A2, 1/4 G1, 1/4 G2
D.
1/4 A1G1, 1/4 A1/G2, 1/4 A2G1, 1/4 A2G2
E.
None of the above
F.
More information is needed
【单选题】A man has genotype A1A1, G1G2. (He has two copies of the A1 allele of gene A, one copy each of the G1 and G2 alles of gene G). The A and G genes are on different chromosomes. What gametes will a singl...
A.
2 of A1A1, 2 of G1G2
B.
1 of A1A1, 1 of A1G1, 1 of A1G2, 1 of G1G2
C.
2 of A1G1, 2 of A1G2
D.
2 of A1, 1 of G1A2, 1 of G2
E.
None of the above
F.
More information is needed
【简答题】听力原文：(A) They're riding in cars. (B) They're riding bicycles. (C) They're riding horses. (D) They're riding behind a motorcycle.
【简答题】轴的直径为30mm,材料为低碳钢,F=500N,M=100Nm受力如图,(1)确定轴的危险点,并画出危险点的应力状态;(2)求出轴危险点的主应力;(3)按第三强度理论计算其相当应力。
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