【单选题】【消耗次数：1】
This is a _____ moment for our research. We should be careful.
①
critical
②
belt
③
conscience
④
copper
参考答案：
复制
纠错
相关题目
【单选题】
The question came up at the meeting ___ we had enough money for our research.
①
that
②
which
③
whether
④
if
【单选题】
Read the book carefully __________ you’ll find lots of information related to our research.
①
if
②
and
③
so
④
or
【单选题】
The ( ) hope to cooperate on this initial research.
①
historic
②
history
③
historical
④
historians
【单选题】
______ the storm, we should have reached our company.
①
Because of
②
In spite of
③
In case of
④
But for
【单选题】
We should be pleased to send you some samples of our new printers on approval, _______ our own expenses.
①
at
②
on
③
for
④
in
【单选题】
It is often more difficult to find trained men than ____ for scientific research.
①
getting financial support
②
to getting financial support
③
to get financial support
④
in getting financial support
【单选题】
We should make a clear ____ between the two scientific terms for the purpose of our discussion.
①
separation
②
discrimination
③
deviation
④
distinction
【单选题】
When we speak to people, we should be ______.
①
as polite as possible
②
as polite as possibly
③
as politely as possible
④
as politely as possibly
【单选题】
2.Should any critical issue _______ the negotiation with foreign company, immediately report to the manager for advice.
①
arise from
②
interact
③
ensure
④
. make
【单选题】
Not only ______ our money, but we were also in danger of losing our lives.
①
we lost
②
lost we
③
we did lose
④
did we lose
随机题目
【单选题】
设 G = áV, E?为一无向图. 它是哈密顿图的必要条件是：
①
对于任意的 V1 ì V, 且 V1 1 ?, 均有p(G - V1) ￡ |V1|；
②
对于任意两个顶点 vi, vj, 均有d(u) + d(v) 3 n；
③
对于任意顶点 v, 均有d(v) 3 n/2；
④
任意顶点的度数都是偶数。
【单选题】
设 G 是 n (n32)阶 n + 1 条边的无向简单连通图, 则以下哪个性质正确：
①
存在顶点 v, d(v)32；
②
存在顶点 v, d(v)33；
③
存在顶点 v, d(v)34；
④
存在顶点 v, d(v)35。