患者，男，80岁，因慢性心衰(全心衰)、心功能Ⅳ级入院，经治疗、护理心功能已恢复至Ⅱ

Many children love junk food. It's bad for their health. Their parents don't want them to eat too much junk food. Although they know it's not a good habit, they still eat it. Some of them eat this kind of food every day. Some only once or twice a week.

Paul is kind of unhealthy. He hardly ever exercises. He eats lots of junk food because he loves it. When he has money, he'll buy junk food. His parents worry about him. But he says.“Maybe I'm not very healthy, but I enjoy myself.”

根据短文内容判断正误，正确的填“T”，错误的填“F”

小题1:Few children love junk food.

小题2:Many parents want their children to eat junk food.

小题3:Children know it's bad habit to eat junk food.

小题4:Paul is very healthy.

小题5:Paul often borrows money to buy junk food.

三视图的主视图、侧视图、俯视图分别是从几何体的 ______、______、______观察几何体画出的轮廓线，画三视图的基本要求是 ______和 ______高度一样； ______和 ______长度一样； ______和 ______宽度一样．

味红茶品饮时，即使在茶汤中加入多种调料，尤其是一些（），香气和滋味是不会轻易被混淆的。

A.小叶种红茶 

B.大叶种红茶 

C.名优红茶 

D.进口红茶

当零件单一方向具有圆、半圆、圆角、曲线及其他复杂形状时，采用（）作图最为方便。

A.正等测轴测图

B.斜二测轴测图

C.主视图

D.剖视图

When the system upon which a transport entity is running fails and subsequently restarts,the(21) information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.The still active side of a half-open connections can close the connection using a(22)timer. This timer measures the time the transport machine will continue to await an (23) of a transmitted segment after the segment has been retransmitted the maximum number of times.When the timer (24),the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user. In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment, the failed side returns an RST i to every segment i that it receives. When the RST i reaches the other side, it must be checked for validity based on the (25) number i, as the RST could be in response to an old segment. If the reset is valid, the transport entity performs an abnormal termination.

空白处（25）应选择（）

A.sequence

B.acknowledgment

C.connection

D.message