蜗轮、蜗杆装配齿顶间隙应符合()倍的蜗轮端面模数。
A、0.1~0.2;
B、0.2~0.3;
C、0.4~0.5;
D、0.6~0.7。
参考答案:B
Any dispute arising from duty payment between the auditee and the Customs should be dealt with in accordance with the provision laid down in the ______.
A. Regulations on Customs External Auditing of the People's Republic of ChinaB. Customs law of the People's Republic of ChinaC. Regulations on Import and Export Tariff of the People's Republic of ChinaD. Both B and C
适用于提取醇溶性成分并能有效除去树脂、油脂等脂溶性杂质的方法是()
A.煎煮法
B.盐析法
C.水提醇沉法
D.醇提水沉法
E.吸附澄清法