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Before the final examination,many students have shown

       of tension.Some have trouble in sleeping while others have lost their appetite(胃口).

A.anxiety                            B.marks                ?    C.signs                         D.remarks

Before the final examination, many students have shown ____ of tension. Some have trouble in sleeping while others have lost their appetite.

A. anxiety        B. marks               C. signs                 D. remarks

Before the final examination, many students have shown ____ of tension. Some have trouble in sleeping while others have lost their appetite.   

A. anxiety  B. marks   C. signs   D. remarks

Before the final examination, many students have shown ______of tension. Some have trouble in sleeping while others have lost their appetite.

Before the final examination, many students have shown ____ of tension. Some have trouble in sleeping while others have lost their appetite.

A. anxiety　　 B. marks　　　　 C. signs　　　　 D. remarks