系统性红斑狼疮的特征性皮肤改变是
A．颊部蝶形红斑B．向阳性皮疹C．结节红斑D．网状青斑E．紫癜样皮疹
参考答案：A
用括号中所给词的适当形式填空。
1. Where _____ his black shoes? ( be )
2. Look! The light is red. You mustn't ______ (cross) the street.
3. There are four classes on the _____ floor. ( one )
4. Jim enjoys _______ (chat) with friends on the phone.
5. Would you like _______ (visit) the museum with me?
按照《建筑法》的规定。从事建筑活动的建筑施工企业应取得（）后，方可在其资质等级许可的范围内从事建筑活动。
A、营业执照
B、相应资质等级证书
C、相应资格证书
D、施工许可证书
