采用计算机替代手工记账，必须经财政部门审批。 ( )

Directions:This section consists of three groups of pairs listed in two columns, A and B. You are to match the one marked 1), 2), 3),4) or 5) in Column A with the one marked a, b, c, d or e in Column B. One point is given to each pair you match.
1) ______ language acquisition device (LAD)
2) ______ stimulus and response
3) ______ the discourse theory
4) ______ acquisition and learning
5) ______ the input hypothesis
a) The former refers to the subconscious process leading to the development of "competence"; the latter refers to conscious study and knowledge of grammatical rules.
h) A sort of mechanism or device which contains the capacity to acquire one’ s first language.
c) It assumes that humans acquire language in only one way--by understanding messages, or by receiving "comprehensible input".
d) It believes there is little difference between the first language acquisition process and the process of second language acquisition--only through communication discourses.
e) The former serves to elicit behaviour; the latter is triggered by the former.

类比是一种有效的学习方法，通过归类和比较，有助于掌握新知识，提高学习效率。在类比过程中，既要找出共同之处，又要抓住不同之处。某同学对机械波和电磁波进行类比，总结出下列内容，其中正确的是 [ ]

A．机械波的频率、波长和波速三者满足的关系，对电磁波也适用

B．机械波都能产生干涉和衍射现象，而电磁波不能产生干涉和衍射现象

C．机械波的传播依赖于介质，电磁波的传播也依赖于介质

D．机械波既有横波又有纵波，而电磁波只有纵波

若通过调查（）

加工贸易合同项下海关不予备案的料件及试车材料，须全额保税。( )

以下哪种不是土的含水率的试验方法（）。

A.烘干法

B.酒精燃烧法

C.比重法

D.环刀法