Section A
Directions:Translate the following passage into Chinese,Write your translation on the
ANSWER SHEET.
Engineers are developing a new type of Internet connection that could carry so much data so quickly it might surprise even Net surfers. This technology would open up a route through which data can be sent at speeds thousands of times faster than what’s possible now. If all goes to plan,the vast data speeds may soon be available to all. That might help solve the problem of how to handle the enormous growth in Internet traffic.The technology would require some new software and fiber-optic links to the PC,but otherwise no change in basic facilities.
第1题
用火焰原子吸收光谱法测食品含钙量,受磷的干扰较大,国标法确定的用于抑制磷干扰的物质是
A、10%氧化铜
B、20g/L氧化镧
C、10g/L氧化铜
D、10%氧化镁
E、20g/L氧化镁
第2题
石墨炉原子吸收法测定食品中铅时,国标法用什么作为基体改进剂消除干扰
A、氧化铜
B、氧化镁
C、氧化镧
D、磷酸二氢铵溶液
E、磷酸铵
第3题
石墨炉原子吸收法测定食品中铅时,国标法规定作为基体改进剂消除干扰的是
A、氧化铜
B、氧化镁
C、氧化镧
D、氧化锌
E、磷酸二氢铵
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