教育费附加税额为营业税的（）。A．2% B．3% C．5% D．6%

甲拾得某银行签发的金额为1万元的本票一张，并将该本票背书送给其女友乙。乙不知本票系甲拾得，按期持票要求银行付款。假设银行知悉该本票系甲拾得并送给乙，对于乙的付款请求，下列哪种说法正确( )

A．根据票据无因性原则，银行应当支付

B．乙无对价取得本票，银行得拒绝支付

C．虽甲取得本票不合法，但因为乙不知情，银行应支付

D．甲取得本票不合法，且乙无对价取得本票，银行得拒绝支付

大便时排出鲜血，肉眼见血与便不混，大便成形。应首选的检查是

A．大便常规镜检

B．肛门直肠指检及直肠镜检查

C．乙状结肠镜

D．纤维结肠镜

E．钡灌肠

用表达式的值替换相应字段的值是（）命令的命令功能。

A.BROWSE

B.REPLACE

C.SORT

D.INDEX

如果使用备用方式进行增压控制，正常情况下至少要进行几次座舱高度的调节（）

A.1次

B.2次

C.3次

D.4次

Emotion is a feeling about or reaction to certain important events or thoughts. People enjoy feeling such pleasant emotions as love, happiness, and contentment. They often try to avoid feeling unpleasant emotions, such as loneliness, worry, and grief.
Individuals communicate most of their emotions by means of words, a variety of sounds, facial expressions, and gestures. For example, anger causes many people to frown, make a fist, and yell. People learn ways of showing some of their emotions from members of their society, though heredity (遗传)may determine some emotional behavior. Research has shown that different isolated peoples show emotions by means of similar facial expressions.
Charles Darwin, famous for the theory of natural selection, also studied emotion. Darwin said in 1872 that emotional behavior originally served both as an aid to survival and as a method of communicating intentions. According to the James-Lange theory of emotions developed in the 1880s, people feel emotions only if aware of their own internal physical reactions to events, such as increased heart rate or blood pressure. But this theory was not up-held: by research on cats that had their nervous system damaged. The cats could not feel their body’s internal changes, but they showed normal emotional behavior. John B. Watson, an American psychologist who helped found the school of psychology called behaviorism, observed that babies stimulated by certain events showed three basic emotions--fear, anger, and love. Watson’s view has been challenged frequently since he proposed it in 1919.
The most widely accepted view is that emotions occur as a complex sequence of events. The sequence begins when a person encounters an important event or thought. The person’s interpretation of the encounter determines the feeling that is likely to follow. For example, someone who encounters a bear in the woods would probably interpret the event as dangerous. The sense of danger would cause the individual to feel fear. Each feeling is followed by physical changes and desires to take action, which are responses to the event that started the sequence. Thus, a person who met a bear would probably run away.
Several American psychologists independently developed the theory that there are eight basic emotions. These emotions--which can exist at various levels of intensity--are anger, fear, joy, sadness, acceptance, disgust,
surprise, and interest or curiosity. They combine to form all other emotions, just as certain basic colors produce all others.

It can be inferred from the second paragraph that those who are born blind ______.

A. have emotions different from those of sighted persons
B. have some facial expressions like those of sighted persons
C. depend only on words to express their feelings
D. seldom communicate with other people by means of gestures