The author's overall point is that ______.

A . The subflow cannot call additional or "nested" subflows.  B . The subflow cannot transfer the contact to another resource.  C . The subflow has full contact control and can perform any action that the parent flow can perform.

A . enable concatenation on the non-root bridge only B . enable concatenation on the root bridge only C . enable concatenation on both the root bridge and non-root bridge D . enable concatenation on the root bridge and set it as desirable on the non-root bridge E . set concatenation as desirable on the root bridge and enable it on the non-root bridge

A . I’m afraid B . I tell you C . I see

A . enable concatenation on the non-root bridge only B . enable concatenation on the root bridge only C . enable concatenation on both the root bridge and non-root bridge D . enable concatenation on the root bridge and set it as desirable on the non-root bridge E . set concatenation as desirable on the root bridge and enable it on the non-root bridge

A . High pressure compressors are more efficient than low pressure compressors B . Mechanical efficiency divided by compressor efficiency will equal the overall efficiency of the compressor unit C . Two stage compressors are generally more efficient than single stage compressors D . The volumetric efficiency is decreased in multistage compressor

A．while B．since C．during D．within

A) it’s extremely difficult to consider all the important elements in problem B) success in medical research has its negative effects C) scientists may unknowingly cause destruction to the human race D) it’s unwise to be totally absorbed in research in scientific medicine

A．have become more and more advanced B．consume less power than ever before C．are responsible for global warming D．initiate carbon-reducing campaign

A．It is a sterile, abstract theory, which fails to make experimental predictions. B．It is a historically important element in the linguistic discourse on enculturation, but is incorrect. C．It is a convincing and cogent alternative to the theories of linguistic expressivists. D．It is experimentally accurate but theoretically inconsistent. E．It is overly focused on the complicated nature of non-linguistic reality.

A．Right B．Wrong C．Not mentioned

A．Y B．N C．NG

A．Monarchs did not allow the people to vote in democratic elections B．Monarchs did not have real power but were symbols of national unity C．The monarch in most countries was a king rather than a queen D．Monarchs were responsible for starting many popular revolutions

A．It occurred mostly within a single century. B．It changed how people thought about trees. C．It provided jobs in several related industries. D．It caused an economic crisis in two countries.

A．was not borne out with sufficient information B．was colored by their political viewpoint C．was not made from a professional point of view D．was deemed to be impractical and thus incorrect 此题为多项选择题。

A.hover B.stretch C.limp D.expose