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【单选题】
接种是微生物培养和微生物选择的必要步骤之一,下列关于接种的叙述中,不正确的是( )。A.
接种通常在酒精灯火焰附近进行
B.
接种时接种环要将培养基的表面划破
C.
接种之前要对接种环进行灼烧灭菌
D.
接种指无菌条件下将微生物接入培养基的操作
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A.
competitive
B.
comparative
C.
subjective
D.
objective
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【单选题】— John, do you have any plans for this weekend? — I’m not sure. I _______ go fishing with my uncle.
A.
can
B.
may
C.
must
D.
should
【简答题】A: Have you made any vacation plans? B: Well, I've decided on one thing —I___ 1 ___go camping. A: That's great! For how long? B: I___ 2 ___be away for a week. I only have five days of vacation. A: So,...
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【单选题】If you can make us an offer competitive price we can sell a large quantity your products our area.
A.
for; for; in
B.
at; of; in
C.
on; for; for
D.
in; for; at
【简答题】抗震设计时高层建筑按其（）可分为甲类建筑、乙类建筑、丙类建筑等三类。
【单选题】一I usually go _______ with my mom on Saturdays. —Oh, you may buy a lot of things you need. [ ]
A.
fishing
B.
shopping
C.
skating
D.
bike riding
【简答题】从方框中选择恰当的选项补全对话。 A. See you then. B. May I speak to Jane, please? C. Yes, what's up? D. Yes, I'd love to. E. Are you free this afternoon? Jane: Hello! Jim: Hello! This is Jim. 1_______ Jane: Speaking....
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