垃圾车每天冲洗（）次，摆放整齐，无强异味，停放于制定地点。
A.1
B.2
C.3
D.4
参考答案：A
22岁妇女，婚检发现：子宫后位，大小正常，直肠窝扪及一如孕2＋月大小半囊半实包块，活动，无压痛，x线盆腔检查右侧可见钙化点，下述哪项是正确的
A．包块可能为恶性B．包块通常由单胚层细胞构成C．常为双侧D．发病高峰年龄是40岁E．最易发生扭转
The English spoken in the United States is only slightly different from _______ spoken in England ?[ ]
A. which
B. what
C. the one
D. that
