基礎ict-u10-d01
A question using the command word 'explain' expects:
A. A reason, linked to the case, introduced by because or which means✓ 答案
B. A one-word label only
C. A diagram with no written words
D. A quotation from a textbook
解說
Explain means give the reason. A device name or a definition is enough for state or name, but for explain the because clause carries the marks, tied to the specific situation in the question.