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【多选题】
Which of the following descriptions about rice are correct?A.
Rice was firstly domesticated along the Yangtze River Valley in China.
B.
The piles of rice grains found at Hemudu site (河姆渡遗址) prove that China is one of the key birthplaces of rice in the world.
C.
The yield of rice had been much less than that of millet till Han Dynasty because there were few people living in the south at that time.
D.
The population growth in the south in Song Dynasty led to the planting of rice on a large scale.
E.
With the yield of rice exceeding all other grain crops, Yangtze River Valley became the economic center of China.
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举一反三
【单选题】宋元时期针灸学发展中最有影响的创造性发明是
A.
针灸著作的大量出现
B.
“子午流注”针法流行
C.
针灸铜人的设计铸造
D.
“同身寸”的提出
E.
滑寿的《十四经发挥》
【简答题】习题5-1 图 示电路为三相对称电路,其线电压 U l =380V ,每相负载 R =6 Ω, X =8 Ω。试以 L 1 相电压为参考相量,写出各相电压和电流的相量式,并画出相量图。
【简答题】根据前面两个题资料编制试算平衡
【简答题】梯形钢屋架节点板的厚度,是根据___来选定的。
【多选题】4345 企业结算本月应付职工的工资 100 000元, 其中生产工人工资8 0 000元, 车间管理人员工资2 0 000 元。这项经济业务涉及的账户有 ( ) 。
A.
生产成本
B.
管理费用
C.
制造费用
D.
应付职工薪酬
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