All+5月雜誌U13小考

physics

• 物理

• 生物

• 化學

• 地科

Ducklings usually swim ____ a row.

• in

• on

• for

• at

Researchers came _____ an interesting explanation for this question.

• up with

• down with

• up for

• down for

The answer, it turns _____, is physics.

• on

• out

• up

• in

簡單來說

• Simply put,

• To put simply,

• Simply to put,

• Putting simply,

Swimming _____ this manner helps the ducklings save energy.

• in

• for

• on

• against

If a duckling swims alone, the wave resistance created by it is known _____ wave drag.

• as

• for

• to

• at

用光(完)… : use _____...

• up

• for

• on

• out

節省… : save _____...

• on

• in

• at

• with

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