【单选题】Counter sample is made by ( ) which can help avoid disputes over the quality of goods in the future transaction.
【单选题】熟料以硅酸三钙、氟铝酸钙为主,主要用于紧急抢修工程,以及冬季施工、堵漏等工程的特性水泥是( )。
【判断题】In the open-economy macroeconomic model, other things the same, when a U.S. resident imports a foreign good, our model treats this as a decrease in the demand for dollars in the foreign-currency excha...
【单选题】关于膝关节的描述,正确的是( )
A.
膝完全伸直,股骨在胫骨上向外旋转,关节扣锁,获得最大的稳定
C.
膝交叉韧带牢固地连接胫骨和股骨,可防止胫骨前、后移位
D.
内侧副韧带伸直时松弛,屈膝时绷紧,有助于膝稳定
E.
直立时,重心线在膝关节中心稍前,不需很大肌力来维持平衡。膝关节受力为体重减去腿足重力
【单选题】下列哪种分类方法不属于国外采用的按营养成分分类的方法()。
【单选题】Counter sample can also be called__________
【判断题】一个民族若没有远见和勇气,那么在这个国家中言论自由不可能得到保护。 ()
【判断题】Counter sample can help avoid disputes over the quality of goods in the future transaction.
【单选题】Counter sample is made by ( ) which can help avoid disputes over the quality of goods in the future transaction.