TheInternationalAssociationofLighthouseauthorities(IALA)buoyagesystem“A”usessometypesofmarkstodistinguishsafenavigation?Whichtype(s)does(do)notbelongtothesystem?（）
A: lateralmarksandcardinalmarks
B: safewatermarks
C: isolateddangermarksandspecialmarks
D: dangerouswatermarks
A: lateralmarksandcardinalmarks
B: safewatermarks
C: isolateddangermarksandspecialmarks
D: dangerouswatermarks
举一反三
- _____ he like English?Yes, he _____. A: Do; do B: Does; do C: Does; does D: Do; does
- it's important to ______ proper exercise. A: do B: go C: did D: does
- 2.What does Feifei's sister do on Fridays?
- What does Tony do A: He’s a gardener. B: He’s a farmer. C: He’s a cleaner. D: He’s a planter.
- To get up early in the morning ________ a lot of good for one’s<br/>health. A: do B: will do C: did D: does