【单选题】John insists that Sarah _______ to the wedding; otherwise he _______.
A.
be invited, will not attend
B.
should be invited, would not attend
C.
was inviting, will not attend
D.
invited, will not attend
【单选题】The author insists that the control of population should not be at the cost of ______.
A.
sacrificing the poor people's welfare
B.
losing something equally precious
C.
improving the environment
D.
reaching the equilibrium of population
【判断题】外斐试验是利用抗原抗体反应的比例性特点来协助斑疹伤寒病的诊断。( )
【单选题】John is in favor of going to the movies,______Mike insists on playing football.
【单选题】外斐试验是利用抗原抗体反应的哪个特点来协助斑疹伤寒病的诊断()。