手足口病的好发季节是（）.
A.春秋
B.冬春
C.秋冬
D.春夏
E.夏秋
参考答案：E
妇女妊娠期空腹血糖浓度较其非孕期（）
A.低
B.高
C.无显著差异
D.先高后低
E.先低后高
_____ do you guess will be the first 10 top students in English in your school next term? [ ]
A. Who
B. Whom
C. Which
D. What
