以下不是Visual Basic合法常量的是( )。
A. ’a’
B. &O12
C. &H12&
D. #1/20/2014#
某企业开发出一种新产品，单位成本为1000元。根据以上资料，回答下列问题： 竞争导向定价法是指以市场上同类竞争产品的价格为定价依据，并根据竞争变化来调整价格的定价方法。下列定价表中属于竞争导向定价法的是______。
A. 随行就市定价法
B. 差别竞争定价法
C. 密封投标定价法
D. 认知价值定价法
Questions 9 to 11 are based on the conversation you have just heard.
A scarcity of jobs in their field.
B. Inadequate training in methods of biological research.
C. Difficulties in classifying all of the varieties of owls.
D. A lack of funding for their work with endangered species.
Questions 12 to 15 are based on the conversation you have just heard.
A. It increased the students’ white blood cell.
B. It increased some students’ energy level.
C. It improved the students’ ability to play musical instruments.
D. It released a natural painkiller in some students’ bodies.
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