阿摩線上測驗
14. When visibility is reduced to about 4 miles, we say that visibility is __________ .
(A) very good
(B) good
(C) poor
(D) moderate
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統計： A(24), B(123), C(225), D(337), E(0) #2523264
統計： A(24), B(123), C(225), D(337), E(0) #2523264
詳解 (共 1 筆)
龍狗
#5480020
| 0 | Dense fog | 50 yards |
| 1 | Thick fog | 300 yards |
| 2 | Fog | 600 yards |
| 3 | Moderate fog | ½ mile |
| 4 | Mist or thin fog | 1 mile |
| 5 | Poor visibility | 2 miles |
| 6 | Moderate visibility | 5 miles |
| 7 | Good visibility | 10 miles |
| 8 | Very good visibility | 30 miles |
| 9 | Exceptional visibility | over 30 miles |
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