不改变分式的值，把分式3a+0.05b12a-0.2b分子分母中的各项系数化为整

根据《商业银行授信工作尽职指引》，商业银行授信实施后，应持续重点监测的内容包括（）。

A.客户是否按约定用途使用授信，是否诚实地全面履行合同

B.授信项目是否正常进行

C.客户的法律地位是否发生变化

D.客户的财务状况是否发生变化

E.授信的偿还情况

在信道每一线对中两个导体之间的不平衡直流电阻对各等级布线系统应不超过（）。

A.5%

B.3%

C.2%

D.1%

受益人是人身保险范畴的特定关系人，下列对于受益人的表述，不正确的是( )。

A．通常只有在被保险人死亡的情况下，受益人才享有受益权
B．受益人是由被保险人或投保人通过合同指定的
C．投保人指定或变更受益人无须经保险人和被保险人的同意
D．除在合同约定的事件发生时有及时通知保险人的义务外，受益人不承担任何其他义务

Press Photographers

Good press photographers must have an "eye" for news, (26) journalists must have a "nose" for a good story. They must be able to interpret a story and decide rapidly how they can take (27) of the best opportunities to take pictures. The most difficult part of a press photographer’s job is that he or she has to be able to (28) a complicated situation with just one photograph. They rarely have second (29) and must be able to take the required (30) very quickly. Indeed, speed is essential — if the photographs are not (31) for the printing deadline, they are very unlikely to be of any (32) .
Most press photographers begin (33) with a local newspaper. There, the (34) is mostly for material of regional interest. Photographers may be expected to photograph a lot of unexciting events but to (35) the enthusiasm to put "something special" into every picture.
There is (36) competition among those who want to move from local to national newspapers. Here, the work is much more centered on news. The photographer must work (37) greater pressure and (38) more responsibility. Only (39) reliable, talented and resourceful photographers (40) this difficult move. The work is tough and can be (41) . On an overseas assignment, photographers may have to (42) unfamiliar food and accommodation, physical and mental stress, and (43) difficulty in transporting the pictures from an isolated area to get them to the newspaper (44) They also have to (45) the competition from other publications.

A. struggle for B. get by C. cope with D. stand up

PLC在工作过程中，要求扫描周期（）WDT设定时间，否则PLC将停止工作。

A、大于；

B、大于等于；

C、小于；

D、小于等于。