[单项选择]Execution by lethal injection, although horrifying, is certainly more civilized than the ______ penalty of death by torture or dismemberment.
A. pervasive
B. viler
C. humane
D. prolific

[单项选择]Execution by lethal injection, although horrifying, is certainly more civilized than the ______ penalty of death by torture or dismemberment.
A. pervasive
B. viler
C. humane
D. prolific

[单项选择]Viruses usually have two phases to their execution, the infection phase and the (75) phase. The later phase is optional, since stone viruses simply reproduce.
A. reproduce
B. proliferation
C. defend
D. attack

[单项选择]

Earthquakes are the most lethal of all natural disasters. What causes them Geologists explain them in terms of a theory known as plate tectonics. Continents are floating apart from each other, this is referred to as the continental drift. About sixty miles below the surface of the sea, there is a semimolten bed of rock over which plates, or slabs, carry continents and sea floors at a rate of several inches a year. As the plates separate from each other, a new sea floor is formed by the molten matter that was formerly beneath. Volcanic islands and large mountain ranges are created by this type of movement. The collision of plates causes geological instability such as that in California called the San Andreas Fault, located between the Pacific and North American plates. The plates there are constantly pushing and pulling adjacent plates, thereby creating constant tremors and a potential for earthquakes in the area.
Geologists would like to be able to predict earthquakes acc
A. employing amateur seismologists
B. observing professional geologists
C. watching animals, wells, and radioactive gas
D. evacuating the population

[单项选择]The chemical is lethal to rats but safe to cattle.
A. toxic
B. harmful
C. deadly
D. contagious

[单项选择]Although adolescent maturational and developmental states occur in an orderly sequence, their timing （） with regard to onset and duration.
A. lasts
B. varies
C. falters
D. accelerates

[单项选择]Although television was developed for broadcasting，many important uses have been found that have nothing to do with it.（）
A. 电视不仅促进了节日的播送，而且也有很多其他重要的作用。
B. 尽管开发电视的初衷是为了播送节日，后来却发现电视还有很多与此毫无关系的重要用途。
C. 为了播送节目电视被开发出来，相应地，很多与此有关的重要用途也被发现。
D. 尽管开发电视的初衷是为了播送节目，后来却发现其实电视的重要用途都与此无关。

[单项选择]I'd sooner they ______ invent the lethal weapon.

[单项选择]Although reservations in advance are usually required in motels in busy areas, this is not always _______ in less crowded parts of the country.


A. the case
B. the reality
C. the truth
D. the fact

[单项选择]Although there are occasional outbreaks of gunfire, we can report that the rebellion has in the main been ______.
A. canceled
B. destroyed
C. suppressed
D. restrained

[单项选择]Although ordinarily skeptical about the purity of Robinson's motives, in this instance Jenkins did not consider Robinson's generosity to be ______ consideration of personal gain.
A. lacking in
B. contrary to
C. alloyed with
D. mitigated by

[单项选择]Although specific concerns may determine the intent of a research project, its results are often ______.
A. unanticipated
B. beneficial
C. expensive
D. spectacular

[单项选择]Although economists have traditionally considered the district to be solely an agricultural one, the ______ of the inhabitants' occupations makes such a classification obsolete.
A. productivity
B. diversity
C. predictability
D. stability

[单项选择]Although diverse, African music has certain distinctive traits, one of which is the use of repetition as an organizing principle.
A. benefits
B. features
C. notions
D. options