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【多选题】
关于证据理论分类的表述,下列哪些选项是错误的?A.
传来证据有可能是直接证据
B.
诉讼中原告提出的证据都是本证，被告提出的证据都是反证
C.
证人转述他人所见的案件事实都属于间接证据
D.
一个客观与合法的间接证据可以单独作为认定案件事实的依据
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【简答题】下面循环语句,能够实现100次循环的有A. unsigned char i; for(i=0;i<100;i++) { //执行的语句 } B. for(i=0;i<=100;i++) { //执行的语句 } C. unsigned char i=0; do { //执行的语句 i++; } while（i<100）; D. unsigned char i=0; do { //执行的语句 i++;...
【简答题】从订单表中删除客户号为'1001”的订单记录，正确的SQL语句是A）DROP FROM订单WHERE客户号='1001'B）DROP FROM订单FOR客户号='1001'C）DELETE FROM订单WHERE客户号='1001'D）DELETE FROM订单FOR客户号='1001'
【单选题】下列有关荧光光谱的描述,错误的是
A.
荧光光谱是通过测量荧光体的强度随发射波长变化而得的光谱
B.
荧光光谱和激发光谱呈对称镜像关系
C.
银行光谱的形状与激发波长有关
D.
荧光光谱位于激发光谱的右侧
E.
荧光光谱强度与激发光谱相似,但不能完全重叠
【单选题】Choose the summary that best expresses the main idea of Paragraph 3.
A.
The risk factor in a portfolio can be reduced by including assets whose risks are complementary, i. e. , if one loses value because of particular circumstances the other gains because of those circumstances.
B.
One should try to eliminate all risks from one's portfolio by only buying very safe shares.
C.
Under no circumstances should a careful investor add high risk assets to his/her portfolio even though the income or capital gain that may be received from that high risk asset could be very large.
【单选题】从订单表中删除客户号为1001的订单记录,正确的是
A.
DROP FROM 订单 WHERE 客户号='1001'
B.
DROP FROM 订单 FOR 客户号='1001'
C.
DELETE FROM 订单 WHERE 客户号='1001'
D.
DELETE FROM 订单 FOR 客户号='1001'
【简答题】Summary of Text A, Unit 4 Fill in the blanks with the words given below. Travel is 1_________ and sometimes even unpleasant; then what is the driving force behind our travel? We travel because we need...
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