题目内容

账户中的本期增加发生额，是增减相抵后的净增加额。( )

A. 对
B. 错

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Threats from nomadic people in the north were (31) throughout Chinese history. They were continually attacking the Chinese northern (32) . With each new emperor, came endless debate about how to (33) the barbarians. There were four options. (34) offensive campaigns to drive them away or to destroy them; create defensive garrisons; develop diplomatic and (35) ties with them, or build a wall to keep them out. All the options were (36) at various times. Experience showed that (37) campaigns were too costly and very risky, (38) defensive garrisons could not respond quickly enough (39) lightning attacks along a long border. The third option would seem to be a very (40) one and it was in fact tried successfully (41) a couple of occasions. Wall building became the most favored option in many dynasties. The three dynasties which (42) the most walls were the Qin, the Han and the Ming. The effectiveness of the Great Wall in history is still a controversial (43) . Historical records show that the wall (44) at many times (45) repel invaders. Only on two occasions when a dynasty weakened from (46) were invaders from the north (47) advance and conquer. (48) , scholars think the Chinese wall builders were themselves responsible for the unrest on the border. The nomads were people who did not farm, so they (49) trade with China for many essentials. When the Chinese refused to trade with them, they had no option (50) raid border towns.

A. rather than
B. other than
C. but to
D. only to

部门.DBF：部门号C(8),部门名C(12),负责人C(6),电话C(16)职工.DBF：部门号C(8),职工号C(10),姓名C(8),性别C(2),出生日期D部门.DBF：部门号C(10),基本工资N(8.2),津贴N(8.2),奖金N(8.2),扣除N(8.2) 为"工资"表增加一个"实发工资"字段的正确命令是【】。

A. MODIFY TABLE工资ADD COLUMN实发工资N(9,2)
B. MODIFY TABLE工资ADD FIELD实发工资N(9,2)
C. ALTER TABLE工资ADD COLUMN实发工资N(9,2)
D. ALTER TABLE工资ADD FIELD实发工资N(9,2)

某股份有限公司(下称公司)于2008年6月在上海证券交易所上市。2009年以来，公司发生了下列事项： (1) 2009年5月，董事赵某将所持公司股份20万股中的2万股卖出；2010年3月，董事钱某将所持公司股份10万股中的25000股卖出；董事孙某因出国定居，于2009年7月辞去董事职务，并于2010年3月将其所持公司股份5万股全部卖出。 (2) 监事李某于2009年4月9日以均价每股8元价格购买5万股公司股票，并于2009年9月10日以均价每股16元价格将上述股票全部卖出。 (3) 2009年5月12日，公司发布年度报告。为该公司年报出具审计报告的注册会计师周某于同年5月20日购买该公司股票1万股。 (4) 公司股东大会于2009年5月8日通过决议，由公司收购本公司股票900万股，即公司已发行股份总额的3%，用于奖励本公司职工。同年6月，公司从资本公积金中出资收购上述股票，并将其中的600万股转让给公司职工，剩余的300万股拟在2010年10月转让给即将被吸收合并于该公司的另一企业的职工。 (5) 2010年7月，公司决定拟以定向发行的方式引进外国战略投资者。双方签订的意向协议约定，：第一，本次定向发行完成后，外国战略投资者首次投资取得公司已发行股份的8%；第二，外国战略投资者本次定向认购的股份在2年内不得转让。 [要求] 根据本题所述内容，分别回答下列问题：1.赵某、钱某和孙某卖出所持公司股票的行为是否符合法律规定并分别说明理由。

使用VC6打开考生文件夹下的工程test25_1，此工程包含一个源程序文件test25_1.cpp，但该程序运行有问题，请改正程序中的错误，使程序的输出结果如下： privatel from derived1:30 privatel from derived2:30 源程序文件test25_1.cpp清单如下： /*****found/ include＜iostream.h＞ class base protected: int privatel; public: base(int p)privatel=p; ; /found*/ class derived1:public base public: derivedl(int p1):base(p1); int get_private()return private1; class derived2:virtua1 public base public: derived2(int p2):base(p2); int get_private()return private1; ; class derived12:public derived1,public derived2 public: /found*********/ derived12(int p1,int p2,int pb):derived1(p1), base(pb), derived2(p2); ; void main() derived12 d(10,20,30); cout＜＜"privatel from derived1:"＜＜d.derived1::get_private(); cout＜＜"\nprivatel from derived2:"＜＜d.derived2::get_private(); cout＜＜endl;