问题
判断题
番茄中的维生素C含量虽然不高，但受有机酸保护，损失很少，且食入量较多，是人体维生素C的良好来源。
答案
参考答案：对
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番茄中的维生素C含量虽然不高，但受有机酸保护，损失很少，且食入量较多，是人体维生素C的良好来源。
参考答案：对
An analyst does research about future market transactions. The following information relates to futures market transactions for both an investor with a long position and an investor with a short position in the market:
| Initial futures price per contract on Day 0 | $100 |
| Initial margin requirement per contract | $6 |
| Maintenance margin requirement per contract | $4 |
| Number of contracts held by each investor | 10 |
| Settlement price per contract on Day 1 | $103 |
A. short position is $10.
B. long position is $30.
C. short position is $30.