3. The T-shirts are US$30 each. ( )
3. The T-shirts are US$30 each. ( )
At today’s exchange rate, every US dollar is equivalent _____ 8:30 yuan RMB. A: to B: as C: in D: for
At today’s exchange rate, every US dollar is equivalent _____ 8:30 yuan RMB. A: to B: as C: in D: for
We would make you the following offer, subject to your telex acceptance us not later than June 30, 1998.
We would make you the following offer, subject to your telex acceptance us not later than June 30, 1998.
设从磁盘将一块数据传送到缓冲区所用时间为80us,将缓冲区中数据传送到用户区所用时间为40us,CPU处理一块数据所用时间为30us.如果有多块数据需要处理，并采用单缓冲区传送某磁盘数据，则获取并且处理中间块数据所用总时间为（）us。
设从磁盘将一块数据传送到缓冲区所用时间为80us,将缓冲区中数据传送到用户区所用时间为40us,CPU处理一块数据所用时间为30us.如果有多块数据需要处理，并采用单缓冲区传送某磁盘数据，则获取并且处理中间块数据所用总时间为（）us。
在图示电路中，已知：Us= 24 V，R1= 20 欧，R2 = 30 欧 ，R3 = 15 欧 ，R4= 100 欧 ，R5 = 25 欧 ，R6= 8 欧 。求Us的输出功率P。6b30934d6e244af435a5f462802987f4.png
在图示电路中，已知：Us= 24 V，R1= 20 欧，R2 = 30 欧 ，R3 = 15 欧 ，R4= 100 欧 ，R5 = 25 欧 ，R6= 8 欧 。求Us的输出功率P。6b30934d6e244af435a5f462802987f4.png
It needs __ that the L/C should reach us 30 days before the month of shipment. A: being mentioned B: to be mentioned C: mentioned D: mention
It needs __ that the L/C should reach us 30 days before the month of shipment. A: being mentioned B: to be mentioned C: mentioned D: mention
Are there enough books for ____? A: three us B: us three C: all us D: the three us
Are there enough books for ____? A: three us B: us three C: all us D: the three us
______ agrees to your plan. A: Anyone of us B: No one of us C: None of us D: Someone of us
______ agrees to your plan. A: Anyone of us B: No one of us C: None of us D: Someone of us
电泳后冲洗最后一道冲洗用纯水电导控制在（）uS／cm以下。 A: 10 B: 20 C: 30 D: 50
电泳后冲洗最后一道冲洗用纯水电导控制在（）uS／cm以下。 A: 10 B: 20 C: 30 D: 50
We would make you the following offer, subject to your telex acceptance us not later than June 30, 1998.? being reached|reach|reaching |reaches;
We would make you the following offer, subject to your telex acceptance us not later than June 30, 1998.? being reached|reach|reaching |reaches;