选择一项: a. Because Melinda wants to make friends with Ashley. b. Because Melinda wants to invite Ashley to discuss something. c. Because Melinda wants to invite Ashley to a party.
参考答案:
用于砌筑潮湿环境以及强度要求较高的砌体时,宜选用( )
用于砌筑潮湿环境以及强度要求较高的砌体时,宜选用( )选择一项:A. 水泥砂浆 B. 石灰砂浆C. 石灰黏土砂浆D. 水泥石灰混和砂浆