居民使用英语，且大多属于白色人种的发达国家是（） ["俄罗斯","法国","美国","巴西"]
在“7099清算头寸查询”交易中查询的可用头寸=（）。 ["A.账面余额-本日借方发生额+本日贷方发生额-圈存金额","B.账面余额+本日借方发生额+本日贷方发生额-圈存金额","C.账面余额-本日借方发生额-本日贷方发生额-圈存金额","D.账面余额-本日借方发生额+本日贷方发生额+圈存金额"]
简述班级德育力量？
Any vessel in need of carrying out deck washing must be（）by the department concerned beforehand. ["requested","allowed","approved","inquired"]
药品生产企业设立的办事机构的所有活动，由（）承担法律责任。 ["批准该办事机构的部门","设立该办事机构的企业","该办事机构设立的企业","该办事机构"]
水泵房发生水浸时如何处置？
