质量是0.2kg的铝块，当它的温度由60℃升高到80℃时，该铝块吸收了多少热量？

对于长期贷款利息的计取，下列说法中正确的是( )。

A．当年贷款按半年计息，当年还款按全年计息
B．当年贷款按全年计息，当年还款按全年计息
C．当年贷款按全年计息，当年还款按半年计息
D．当年贷款按半年计息，当年还款按半年计息

下列关于挪用公款罪与贪污罪的说法中，正确的是：( )

A．行为人挪用公款后携带挪用的公款移居国外的，应当被认定为贪污罪

B．行为人挪用巨额公款从事营利活动，结果因经营不善对挪用的全部款项均不能归还，则行为人的挪用公款罪将转化为贪污罪

C．行为人挪用巨额公款从事非法活动，在案发后慌称其挪用的公款已被自己挥霍殆尽，则属于“挪用公款不退还”，应当以挪用公款罪从重处罚

D．行为人若在挪用公款后有平帐行为，则构成贪污罪

由相互作用和制约的若干要素组成的具有特定目标的有机整体是（ ）

A．决策

B．反馈

C．系统

D．递归

A transport layer protocol has several responsibilities, One is to create a process-to-process (program-to-program) communication; TCP uses port (11) to accomplish this. Another responsibility of a transport layer protocol is to create a (12) and error-control mechanism at the transport level．TCP uses a sliding (13) protocol to achieve flow control．It uses the acknowledgment packet，time-out，and retransmission to achieve (14) control．The transport layer is also responsible for providing a connection mechanism for the application program．The application program sends (15) of data to the transport layer．It is the responsibility of the transport layer at the sending station to make a connection with the receiver．

A．procedure

B．function

C．route

D．flow

赤石脂的功效是（）

A.涩肠止泻，收敛止血，敛疮生肌

B.涩肠止泻，温中行气

C.涩肠止泻，敛肺止咳，利咽开音

D.敛肺止咳，涩肠止泻，安蛔止痛，生津止渴

E.收敛固涩，益气生津，补肾宁心