下列施工合同履行过程中发生的情形中,当事人可以解除合同的有( )。
A. 建设单位延期支付工程款,经催告后同意
B. 未经建设单位同意施工企业擅自更换了现场技术员的
C. 施工单位已完成的建设工程质量不合格,并拒绝修复的
D. 施工过程中,施工企业不满建设单位的指令,将全部工人和施工机械撤离现场,并开始了其他工程建设的
E. 施工企业施工组织不力,导致工期一再延误,使该工程项目已无投产价值的
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··Structure··(10 minutes)Directions: This part is to test your ability to construct grammatically correct sentences. It consists of2 sections.Section A21.Whenever____________with something difficult, they tried to learn and develop the needed skills tosolve it.
A)face
B) faced
C)to face
D)facing
22.____________you enjoy working from home or not, there are some emotional and physical health benefits.
A)What
B)That
C)How
D)Whether
23. Latin America experienced a big rise___________demand for smartphones with almost 28 million sold.
A)in
B)at
C)over
D) along
24.The best thing you can do to protect your possessions while____________is to purchase an insurance.
A)travel
B) traveling
C)to travel
D)traveled