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【单选题】
某民营化工企业主要产品为日光油漆。其生产车间和库房中的主要原料有甲苯、二甲苯、甲基丙烯酸甲酯、丙烯酸丁酯、苯乙烯等。生产车间与库房的耐火等级均为二级，二者间距为10m，原料和产品用机动车辆运输。另有冬季取暖的燃煤锅炉一台，锅炉房邻近库房一侧，与库房间距为14m，其耐火等级为三级。企业原有从业人员11人，今年初又招聘从业人员甲，现有从业人员12人。企业未设安全生产管理机构和专职安全生产管理人员，由技术员兼职安全生产管理人员。 根据以上场景，回答下列问题 根据《危险化学品安全管理条例》的规定，该企业应当对其生产、储存装置每( )年进行一次安全评价。A.
半
B.
一
C.
两
D.
三
E.
四
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举一反三
【单选题】The main idea of the passage is that______.
A.
childhood is the most enjoyable time in one's life
B.
life is not enjoyable since each age has some pains
C.
young men can have the greatest happiness if they work hard
D.
one is the happiest if he can make good use of each age in his life
【单选题】Most of us trade money for entertainment. Movies, concerts and shows are enjoyable but expensive. (78) If you think that you can't have a good time without spending a lot of money, read on. A little r...
A.
There are many kinds of amusements you can enjoy with spending no money.
B.
The film shown at the local public library is often free of charge.
C.
Local colleges often hold meetings to debate the issues people are interested in.
D.
You should be a tourist if you want to know more about the city you live in.
【判断题】嵌入式系统的专用性是指通过对软、硬件的裁剪，使其满足对象要求的最小软、硬件配置，满足某一种特殊用途的需求，针对这项用途开发出与其他产品截然不同的系统。
A.
正确
B.
错误
【单选题】Most of us trade money for entertainment. Movies, concerts and shows are enjoyable but expensive. (78) If you think that you can't have a good time without spending a lot of money, read on. A little r...
A.
There are many kinds of amusements you can enjoy without spending much money.
B.
Local colleges often hold meetings to debate the issues people are interested in.
C.
The film shown at the local public library is often free of charge.
D.
You should be a tourist if you want to know more about the city you live in.
【单选题】Most of us trade money for entertainment. Movies, concerts and shows are enjoyable but expensive. If you think that you can't have a good time without spending a lot of money, read on. A little resour...
A.
There are many kinds of amusements you can enjoy without spending much money.
B.
Local colleges often hold meetings to debate the issues people are interested in.
C.
The film shown at the local public library is often free of charge.
D.
You should be a tourist if you want to know more about the city you live in.
【单选题】Most of us trade money for entertainment. Movies, concerts and shows are enjoyable but expensive. (78) If you think that you can't have a good time without spending a lot of money, read on. A little r...
A.
There are many kinds of amusements you can enjoy with spending no money.
B.
The film shown at the local public library is often free of charge.
C.
Local colleges often hold meetings to debate the issues people are interested in.
D.
You should be a tourist if you want to know more about the city you live in.
【单选题】Most of us agree that swimming is more enjoyable in such a fine day than______ novels under the tree.
A.
reading
B.
to read
C.
being reading
D.
to be reading
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