关于狭水道条款，下列何项正确：（）A.在任何情况下，船舶应尽量靠近本船右舷的航道外缘

下边漫画《美在其中》的做法[ ]

A．是正确行使公民权利的表现

B．是积极履行公民义务的表现

C．是只履行义务，不享受权利的表现

D．是违背权利和义务具有一致性的表现

噪声监测分析过程中，测量前后仪器的灵敏度相差不大于( )。

A．0.1 dB

B．0.2 dB

C．0.5 dB

D．1 dB

种子萌发胚芽首先突破种皮。

A:What’S the date today
B:It’S June 16.
A:(16)Then it’S Dragon Boat Festival today, isn’t it
B:Yes. (17)
A:Did you have rice dumplings this morning
B:Sure. (18)
A:I didn’t.
B:What a pity! But I happen to have got somewith me. (19)
A:I’d love to. By the way, why do you call it Dragon Boat Festival
B:Because in China, people race dragon boats this day every year。
A:0h, I see. (20)
B:You are welcome.
A．We Chinese usually eat rice dumplings the day.
B．I hate eating rice dumplings.
C．Thank you for your rice dumpling.
D．I don’think so.
E．Would you like to have one
F．Already
G．How about you

下列选项中，不属于间壁式换热器的是：（）。

A、固定管板式换热器

B、浮头式换热器

C、U形管式换热器

D、板片式换热器