【单选题】—What’s the matter, Linda? —I have a toothache and I ____________ terrible.
【单选题】Researchers conducted breeding studies with two species of mice. Species A was monogamous, while Species B was not.Supporters of the competing parental interest theory hypothesized that the monogamous...
A.
When females from Species A were bred with males from Species B, the resulting offspring were extremely small.
B.
When females from Species A were bred with males from Species B, the resulting offspring were extremely large.
C.
When females from Species B were bred with males from Species A, the resulting offspring were extremely large.
D.
The offspring of Species B mice were consistently smaller than the off-spring of Species A mice.
【单选题】What is the lifespan of a species connected to?
A.
The lifespan of a species is connected to the speed at which the heart beats.
B.
The lifespan of a species is connected to the size of the species.
C.
The lifespan of a species is connected to the speed at which the species runs.
【单选题】I have( )three terrible English examinations this week.
【单选题】由于生活环境和生活方式的不同,昆虫的足特化成各种类型,其中 蜜蜂的后足为( ) 。
【单选题】Rarely ______ such a terrible sight.