家兔的组织细胞新陈代谢产生的二氧化碳在排出体外的过程中，可以不经过（ ） A．右

宽扁呈薄片状，多见于胸腹壁的肌称（）。

A.长肌

B.短肌

C.轮匝肌

D.背阔肌

E.不规则肌

NAC's (Network Access Control) role is to restrict network access to Only compliant endpoints and (66) users. However, NAC is not a complete LAN (67) solution; additional proactive and (68) security measures must be implemented. Nevis is the first and only comprehensive LAN security solution that combines deep security processing of every packet at 10Gbps, ensuring a high level of security plus application availability and performance. Nevis integrates NAC as the first line of LAN security (69). In addition to NAC, enterprises need to implement role-based network access control as well as critical proactive security measures — real-time, multilevel (70) inspection and microsecond threat containment.

（70）处填（）。

A．port

B．connection

C．threat

D．insurance

Most people think the first pies were made by early Romans. They may have learned about pie making from the Greeks. These pies were sometimes made in"reeds (芦苇叶)", which were used for the purpose of holding the filling (馅 ), and were not eaten.

The Romans spread the word about pies around Europe and the word"pie"became a popular word in the 14th century. The first pie recipe (食谱) was also published by the Romans.

Pies first appeared in England as early as the twelfth century. The early pies were mostly meat pies. There was actually more crust(皮)than filling. Often these pies were made from fowl ( 家禽) and the fowl's legs were left to hang over the side of the dish and used as handles. Fruit pies were probably first made in the 1500s. It is said that Queen Elizabeth I made the first cherry pie.

Pie came to America with the first English settlers. The early settlers cooked their pies in long narrow pans. As in the Roman times, the early American pie crusts were often not eaten, but simply used to hold the filling during baking(烘焙).

Over the years, pie has become what it is today --- "the most traditional American dessert". Pie has become so much a part of American culture that we now often use the phrase "as American as apple pie".

51. Which people might probably first grasp the skill to make pies?

A. The Romans.     B. The Greeks.    C. The Englishmen.    D. The Americans.

52. Which of the following is NOT true about pies?

A. English settlers brought pies to America.

B. Early Romans ate not only pies but also the crusts.

C. The Romans first published pie recipe.

D. The word “pie ” became popular because of the Romans` efforts.

53. What can best show pies have become part of American culture?

A. Americans use long narrow pans to cook pies.

B. People use "as American as apple pie" to show something about American characteristics.

C. Americans don't eat crusts but use them to hold the filling during baking.

D. Pies are the most traditional American dessert.

54. The best title of this passage is "______________".

A . The History of Pies                        B. Pies, the Delicious Food

C. Pies, American Dessert                D. How to Make Pies

后张法预应力钢筋混凝土梁长6m，留直线孔道，预应力筋一端用螺杆锚具，另一端用镦头插片，则预应力筋单根长为( )m。

A．5.65
B．6.00
C．6.15
D．6.30

KANNAD 406MHZ卫星位标，检查电器性能正常，磁铁磁性正常.磁性开关正常，检查完毕把卫星示位放回盒中，电源开关放在开位置，如果指示灯常亮，说明（）

A.工作正常

B.电源开关应放在关位置

C.把卫星示位标放回盒中，没有把标志的一面向上

D.B或C