男，32岁，胸骨左缘第3肋间典型舒张早期杂音，可考虑主动脉瓣关闭不全的诊断，应与肺动

在织口中，同时控制片梭飞行的导梭片至少要有（）

A、2片

B、4片

C、6片

D、8片

化石是生物进化的直接证据。                                     （ ）

除了企业购买外，过去五年中购买一辆新的刚刚出厂的汽车平均开支的金额增长了30%。在同样的时期中，购买汽车的开支占家庭平均预算的比例并未发生变化。因此在过去的五年中的家庭平均预算一定也增加了30%。 以上论述依据下面哪个假设

A．在过去的五年中，平均每个家庭购买新的刚出厂的汽车的数量没有变化。

B．在过去的五年中，企业平均在每辆新车上的花费增长了30%。

C．在过去的五年中，家庭平均花在和汽车有关的方面的费用没有变。

D．在过去的五年中，家庭平均花在食物和住房上的开支没有变。

E．在过去的五年中，全国花费在新的刚出厂的汽车上的费用增长了30%。

构成咽淋巴环内环的结构有

A．咽扁桃体

B．咽鼓管扁桃体

C．腭扁桃体

D．咽侧索

E．咽后壁淋巴滤泡

1) ______ linguistic competence and linguistic performance
2) ______ assimilation and accommodation
3) ______ the language acquisition device (LAD)
4) ______ communicative competence
5) ______ the input hypothesis
a) The former is the process by which incoming information is changed or modified in our minds so that we can fit it in with what we already know; while the latter is the process by which we modify what we already know to take into account new information.
b) The former refers to knowledge of grammatical rules of language; whale the latter refers to application of language.
c) The ability not only to apply the grammatical rules of a language in order to form grammatically correct sentences but also to know when and where to use these sentences and to whom.
d) A sort of mechanism or device which contains the capacity to acquire one’s first language.
e) It assumes that humans acquire language in only one way--by understanding messages, or by receiving "comprehensible input".