团队精神的核心是集体主义，是合作共享、乐于奉献，是个人的利益服从团队的利益。[

下列哪项系统组件必须经由国家消防产品质量监督检验中心检验。

A.消防水泵

B.多功能水泵控制阀

C.蝶阀

D.闸阀

（10无锡14贵港2）某粒子的结构示意图为 ，则该粒子是

A．原子

B．分子

C．阳离子

D．阴离子

语法填空（共10 小题；每小题1.5分,满分15分）

Americans love pets. In America, there are more families with pets    16   those with children. It is common    17    U.S. homes have some sort of pets, such as monkeys, snakes and even wolves. But Americans’ all-time favorites are cats and dogs, because dogs can offer protection from thieves and unwelcome visitors and cats can help get rid    18    the home unwanted pests. Beneath keeping pets, there lies a basic American belief: Pets have a right to be treated well. In Houston, Texas, dogs can have their dinner    19    (deliver) to their homes, just like pizza. Pets can even go with    20    owners on vacation. Besides, at least 75 animal welfare organizations exist in America    21    provide care and adoption services for    22    (home) and ill-treated animals. To pay for the high-tech health care, people can buy health insurance     23   their pets. Pets are as basic to American culture as hot dogs or apple pie. By now researchers    24    (discover) that interacting with animals lowers a person's blood pressure. Pets even encourage social relationships: They give their owners an appearance of friendliness, and they provide    25    good topic of conversation.

天窗点结束开通后，作业人员最后撤出防护网围栏的是（）。

A.作业人员

B.作业负责人

C.远端防护员

D.现场防护员

当期货交易所涉及占其净资产5%以上时，期货交易所应当及时向中国证监会报告。（）